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<!--Generated by DFIN XBRL Instance Document - http://www.dfinsolutions.com/ - Version R3.0 - on 26-February-2025 [03:39:36] {AM}-->
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<labelLink xlink:type="extended" xlink:role="http://www.xbrl.org/2003/role/link">
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_CoverAbstract" xlink:label="loc_dei_CoverAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_CoverAbstract" xml:lang="en-US">Cover [Abstract]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_CoverAbstract" xlink:to="lab_dei_CoverAbstract" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentInformationTable" xlink:label="loc_dei_DocumentInformationTable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_DocumentInformationTable" xml:lang="en-US">Document Information [Table]</label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_DocumentInformationLineItems" xml:lang="en-US">Document Information [Line Items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentInformationLineItems" xlink:to="lab_dei_DocumentInformationLineItems" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentType" xlink:label="loc_dei_DocumentType" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_DocumentType" xml:lang="en-US">Document Type</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentType" xlink:to="lab_dei_DocumentType" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_AmendmentFlag" xlink:label="loc_dei_AmendmentFlag" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_AmendmentFlag" xml:lang="en-US">Amendment Flag</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_AmendmentFlag" xlink:to="lab_dei_AmendmentFlag" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentPeriodEndDate" xlink:label="loc_dei_DocumentPeriodEndDate" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_DocumentPeriodEndDate" xml:lang="en-US">Document Period End Date</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentPeriodEndDate" xlink:to="lab_dei_DocumentPeriodEndDate" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentFiscalYearFocus" xlink:label="loc_dei_DocumentFiscalYearFocus" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_DocumentFiscalYearFocus" xml:lang="en-US">Document Fiscal Year Focus</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentFiscalYearFocus" xlink:to="lab_dei_DocumentFiscalYearFocus" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentFiscalPeriodFocus" xlink:label="loc_dei_DocumentFiscalPeriodFocus" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_DocumentFiscalPeriodFocus" xml:lang="en-US">Document Fiscal Period Focus</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentFiscalPeriodFocus" xlink:to="lab_dei_DocumentFiscalPeriodFocus" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityRegistrantName" xlink:label="loc_dei_EntityRegistrantName" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_EntityRegistrantName" xml:lang="en-US">Entity Registrant Name</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityRegistrantName" xlink:to="lab_dei_EntityRegistrantName" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityCentralIndexKey" xlink:label="loc_dei_EntityCentralIndexKey" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_EntityCentralIndexKey" xml:lang="en-US">Entity Central Index Key</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityCentralIndexKey" xlink:to="lab_dei_EntityCentralIndexKey" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityWellKnownSeasonedIssuer" xlink:label="loc_dei_EntityWellKnownSeasonedIssuer" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_EntityWellKnownSeasonedIssuer" xml:lang="en-US">Entity Well-known Seasoned Issuer</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityWellKnownSeasonedIssuer" xlink:to="lab_dei_EntityWellKnownSeasonedIssuer" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityVoluntaryFilers" xlink:label="loc_dei_EntityVoluntaryFilers" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_EntityVoluntaryFilers" xml:lang="en-US">Entity Voluntary Filers</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityVoluntaryFilers" xlink:to="lab_dei_EntityVoluntaryFilers" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityCurrentReportingStatus" xlink:label="loc_dei_EntityCurrentReportingStatus" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_EntityCurrentReportingStatus" xml:lang="en-US">Entity Current Reporting Status</label>
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<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityShellCompany" xlink:label="loc_dei_EntityShellCompany" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_EntityShellCompany" xml:lang="en-US">Entity Shell Company</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityShellCompany" xlink:to="lab_dei_EntityShellCompany" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityFilerCategory" xlink:label="loc_dei_EntityFilerCategory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_EntityFilerCategory" xml:lang="en-US">Entity Filer Category</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityFilerCategory" xlink:to="lab_dei_EntityFilerCategory" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityEmergingGrowthCompany" xlink:label="loc_dei_EntityEmergingGrowthCompany" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_EntityEmergingGrowthCompany" xml:lang="en-US">Entity Emerging Growth Company</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityEmergingGrowthCompany" xlink:to="lab_dei_EntityEmergingGrowthCompany" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_CurrentFiscalYearEndDate" xlink:label="loc_dei_CurrentFiscalYearEndDate" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_CurrentFiscalYearEndDate" xml:lang="en-US">Current Fiscal Year End Date</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_CurrentFiscalYearEndDate" xlink:to="lab_dei_CurrentFiscalYearEndDate" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentAnnualReport" xlink:label="loc_dei_DocumentAnnualReport" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_DocumentAnnualReport" xml:lang="en-US">Document Annual Report</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentAnnualReport" xlink:to="lab_dei_DocumentAnnualReport" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentTransitionReport" xlink:label="loc_dei_DocumentTransitionReport" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_DocumentTransitionReport" xml:lang="en-US">Document Transition Report</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentTransitionReport" xlink:to="lab_dei_DocumentTransitionReport" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentShellCompanyReport" xlink:label="loc_dei_DocumentShellCompanyReport" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_DocumentShellCompanyReport" xml:lang="en-US">Document Shell Company Report</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentShellCompanyReport" xlink:to="lab_dei_DocumentShellCompanyReport" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityCommonStockSharesOutstanding" xlink:label="loc_dei_EntityCommonStockSharesOutstanding" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_EntityCommonStockSharesOutstanding" xml:lang="en-US">Entity Common Stock, Shares Outstanding</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityCommonStockSharesOutstanding" xlink:to="lab_dei_EntityCommonStockSharesOutstanding" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_Security12bTitle" xlink:label="loc_dei_Security12bTitle" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_Security12bTitle" xml:lang="en-US">Title of 12(b) Security</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_Security12bTitle" xlink:to="lab_dei_Security12bTitle" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityInteractiveDataCurrent" xlink:label="loc_dei_EntityInteractiveDataCurrent" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_EntityInteractiveDataCurrent" xml:lang="en-US">Entity Interactive Data Current</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityInteractiveDataCurrent" xlink:to="lab_dei_EntityInteractiveDataCurrent" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityAddressCountry" xlink:label="loc_dei_EntityAddressCountry" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_EntityAddressCountry" xml:lang="en-US">Entity Address, Country</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressCountry" xlink:to="lab_dei_EntityAddressCountry" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityExTransitionPeriod" xlink:label="loc_dei_EntityExTransitionPeriod" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_EntityExTransitionPeriod" xml:lang="en-US">Entity Ex Transition Period</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityExTransitionPeriod" xlink:to="lab_dei_EntityExTransitionPeriod" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_TradingSymbol" xlink:label="loc_dei_TradingSymbol" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_TradingSymbol" xml:lang="en-US">Trading Symbol</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_TradingSymbol" xlink:to="lab_dei_TradingSymbol" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_SecurityExchangeName" xlink:label="loc_dei_SecurityExchangeName" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_SecurityExchangeName" xml:lang="en-US">Security Exchange Name</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_SecurityExchangeName" xlink:to="lab_dei_SecurityExchangeName" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_IcfrAuditorAttestationFlag" xlink:label="loc_dei_IcfrAuditorAttestationFlag" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_IcfrAuditorAttestationFlag" xml:lang="en-US">ICFR Auditor Attestation Flag</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_IcfrAuditorAttestationFlag" xlink:to="lab_dei_IcfrAuditorAttestationFlag" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityFileNumber" xlink:label="loc_dei_EntityFileNumber" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_EntityFileNumber" xml:lang="en-US">Entity File Number</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityFileNumber" xlink:to="lab_dei_EntityFileNumber" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityIncorporationStateCountryCode" xlink:label="loc_dei_EntityIncorporationStateCountryCode" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_EntityIncorporationStateCountryCode" xml:lang="en-US">Entity Incorporation, State or Country Code</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityIncorporationStateCountryCode" xlink:to="lab_dei_EntityIncorporationStateCountryCode" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityAddressAddressLine1" xlink:label="loc_dei_EntityAddressAddressLine1" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_EntityAddressAddressLine1" xml:lang="en-US">Entity Address, Address Line One</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressAddressLine1" xlink:to="lab_dei_EntityAddressAddressLine1" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityAddressAddressLine2" xlink:label="loc_dei_EntityAddressAddressLine2" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_EntityAddressAddressLine2" xml:lang="en-US">Entity Address, Address Line Two</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressAddressLine2" xlink:to="lab_dei_EntityAddressAddressLine2" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityAddressCityOrTown" xlink:label="loc_dei_EntityAddressCityOrTown" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_EntityAddressCityOrTown" xml:lang="en-US">Entity Address, City or Town</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressCityOrTown" xlink:to="lab_dei_EntityAddressCityOrTown" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityAddressStateOrProvince" xlink:label="loc_dei_EntityAddressStateOrProvince" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_EntityAddressStateOrProvince" xml:lang="en-US">Entity Address, State or Province</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressStateOrProvince" xlink:to="lab_dei_EntityAddressStateOrProvince" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityAddressPostalZipCode" xlink:label="loc_dei_EntityAddressPostalZipCode" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_EntityAddressPostalZipCode" xml:lang="en-US">Entity Address, Postal Zip Code</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressPostalZipCode" xlink:to="lab_dei_EntityAddressPostalZipCode" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_CityAreaCode" xlink:label="loc_dei_CityAreaCode" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_CityAreaCode" xml:lang="en-US">City Area Code</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_CityAreaCode" xlink:to="lab_dei_CityAreaCode" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_LocalPhoneNumber" xlink:label="loc_dei_LocalPhoneNumber" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_LocalPhoneNumber" xml:lang="en-US">Local Phone Number</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_LocalPhoneNumber" xlink:to="lab_dei_LocalPhoneNumber" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_ContactPersonnelName" xlink:label="loc_dei_ContactPersonnelName" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_ContactPersonnelName" xml:lang="en-US">Contact Personnel Name</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_ContactPersonnelName" xlink:to="lab_dei_ContactPersonnelName" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentRegistrationStatement" xlink:label="loc_dei_DocumentRegistrationStatement" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_DocumentRegistrationStatement" xml:lang="en-US">Document Registration Statement</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentRegistrationStatement" xlink:to="lab_dei_DocumentRegistrationStatement" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_AuditorName" xlink:label="loc_dei_AuditorName" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_AuditorName" xml:lang="en-US">Auditor Name</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_AuditorName" xlink:to="lab_dei_AuditorName" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_AuditorFirmId" xlink:label="loc_dei_AuditorFirmId" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_AuditorFirmId" xml:lang="en-US">Auditor Firm ID</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_AuditorFirmId" xlink:to="lab_dei_AuditorFirmId" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_AuditorLocation" xlink:label="loc_dei_AuditorLocation" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_AuditorLocation" xml:lang="en-US">Auditor Location</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_AuditorLocation" xlink:to="lab_dei_AuditorLocation" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentFinStmtErrorCorrectionFlag" xlink:label="loc_dei_DocumentFinStmtErrorCorrectionFlag" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_DocumentFinStmtErrorCorrectionFlag" xml:lang="en-US">Document Financial Statement Error Correction [Flag]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentFinStmtErrorCorrectionFlag" xlink:to="lab_dei_DocumentFinStmtErrorCorrectionFlag" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_ContactPersonnelFaxNumber" xlink:label="loc_dei_ContactPersonnelFaxNumber" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_ContactPersonnelFaxNumber" xml:lang="en-US">Contact Personnel Fax Number</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_ContactPersonnelFaxNumber" xlink:to="lab_dei_ContactPersonnelFaxNumber" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentAccountingStandard" xlink:label="loc_dei_DocumentAccountingStandard" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_DocumentAccountingStandard" xml:lang="en-US">Document Accounting Standard</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentAccountingStandard" xlink:to="lab_dei_DocumentAccountingStandard" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityAddressesAddressTypeAxis" xlink:label="loc_dei_EntityAddressesAddressTypeAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_EntityAddressesAddressTypeAxis" xml:lang="en-US">Entity Addresses, Address Type [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressesAddressTypeAxis" xlink:to="lab_dei_EntityAddressesAddressTypeAxis" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_AddressTypeDomain" xlink:label="loc_dei_AddressTypeDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_AddressTypeDomain" xml:lang="en-US">Address Type [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_AddressTypeDomain" xlink:to="lab_dei_AddressTypeDomain" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_BusinessContactMember" xlink:label="loc_dei_BusinessContactMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_BusinessContactMember" xml:lang="en-US">Business Contact [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_dei_BusinessContactMember" xml:lang="en-US">Business Contact [Member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_BusinessContactMember" xlink:to="lab_dei_BusinessContactMember" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_StatementOfFinancialPositionAbstract" xlink:label="loc_ifrs-full_StatementOfFinancialPositionAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_StatementOfFinancialPositionAbstract" xml:lang="en-US">Statement of financial position [abstract]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="lab_ifrs-full_StatementOfFinancialPositionAbstract" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AssetsAbstract" xlink:label="loc_ifrs-full_AssetsAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_AssetsAbstract" xml:lang="en-US">Assets [abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_AssetsAbstract" xml:lang="en-US">Assets</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AssetsAbstract" xlink:to="lab_ifrs-full_AssetsAbstract" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentAssetsAbstract" xlink:label="loc_ifrs-full_CurrentAssetsAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_CurrentAssetsAbstract" xml:lang="en-US">Current assets [abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_CurrentAssetsAbstract" xml:lang="en-US">Current assets</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentAssetsAbstract" xlink:to="lab_ifrs-full_CurrentAssetsAbstract" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Cash" xlink:label="loc_ifrs-full_Cash" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_Cash" xml:lang="en-US">Cash</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_Cash" xml:lang="en-US">Cash</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_Cash" xlink:to="lab_ifrs-full_Cash" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherCurrentFinancialAssets" xlink:label="loc_ifrs-full_OtherCurrentFinancialAssets" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_OtherCurrentFinancialAssets" xml:lang="en-US">Other current financial assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_OtherCurrentFinancialAssets" xml:lang="en-US">Bonds and money market funds</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_ifrs-full_OtherCurrentFinancialAssets" xml:lang="en-US">Current portion</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherCurrentFinancialAssets" xlink:to="lab_ifrs-full_OtherCurrentFinancialAssets" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TradeAndOtherCurrentReceivables" xlink:label="loc_ifrs-full_TradeAndOtherCurrentReceivables" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_TradeAndOtherCurrentReceivables" xml:lang="en-US">Trade and other current receivables</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_TradeAndOtherCurrentReceivables" xml:lang="en-US">Trade and other receivables</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_ifrs-full_TradeAndOtherCurrentReceivables" xml:lang="en-US">Total</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TradeAndOtherCurrentReceivables" xlink:to="lab_ifrs-full_TradeAndOtherCurrentReceivables" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InventoriesTotal" xlink:label="loc_ifrs-full_InventoriesTotal" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_InventoriesTotal" xml:lang="en-US">Inventories</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_InventoriesTotal" xml:lang="en-US">Inventories</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_ifrs-full_InventoriesTotal" xml:lang="en-US">Total Inventories</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InventoriesTotal" xlink:to="lab_ifrs-full_InventoriesTotal" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentPrepaidExpenses" xlink:label="loc_ifrs-full_CurrentPrepaidExpenses" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_CurrentPrepaidExpenses" xml:lang="en-US">Current prepaid expenses</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_CurrentPrepaidExpenses" xml:lang="en-US">Prepaid expenses and deposits</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_ifrs-full_CurrentPrepaidExpenses" xml:lang="en-US">Prepaid Expenses and Deposits</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentPrepaidExpenses" xlink:to="lab_ifrs-full_CurrentPrepaidExpenses" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentDerivativeFinancialAssets" xlink:label="loc_ifrs-full_CurrentDerivativeFinancialAssets" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_CurrentDerivativeFinancialAssets" xml:lang="en-US">Current derivative financial assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_CurrentDerivativeFinancialAssets" xml:lang="en-US">Derivative financial assets</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentDerivativeFinancialAssets" xlink:to="lab_ifrs-full_CurrentDerivativeFinancialAssets" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentAssets" xlink:label="loc_ifrs-full_CurrentAssets" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_CurrentAssets" xml:lang="en-US">Current assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_ifrs-full_CurrentAssets" xml:lang="en-US">Total current assets</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentAssets" xlink:to="lab_ifrs-full_CurrentAssets" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_TaxCreditReceivable" xlink:label="loc_thtx_TaxCreditReceivable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_TaxCreditReceivable" xml:lang="en-US">Tax Credit Receivable</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_TaxCreditReceivable" xml:lang="en-US">Tax credits receivable</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_TaxCreditReceivable" xlink:to="lab_thtx_TaxCreditReceivable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_TaxCreditReceivable" xml:lang="en-US">Tax credit receivable.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashEquivalents" xlink:label="loc_ifrs-full_CashEquivalents" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_CashEquivalents" xml:lang="en-US">Cash equivalents</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_CashEquivalents" xml:lang="en-US">Cash equivalent held in escrow</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashEquivalents" xlink:to="lab_ifrs-full_CashEquivalents" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DeferredTaxAssets" xlink:label="loc_ifrs-full_DeferredTaxAssets" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DeferredTaxAssets" xml:lang="en-US">Deferred tax assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DeferredTaxAssets" xml:lang="en-US">Deferred tax assets</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DeferredTaxAssets" xlink:to="lab_ifrs-full_DeferredTaxAssets" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_IncomeTaxReceivableCurrent" xlink:label="loc_thtx_IncomeTaxReceivableCurrent" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_IncomeTaxReceivableCurrent" xml:lang="en-US">Income Tax Receivable Current</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_IncomeTaxReceivableCurrent" xml:lang="en-US">Income taxes receivable</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_IncomeTaxReceivableCurrent" xlink:to="lab_thtx_IncomeTaxReceivableCurrent" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_IncomeTaxReceivableCurrent" xml:lang="en-US">Income tax receivable current.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentAssetsAbstract" xlink:label="loc_ifrs-full_NoncurrentAssetsAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_NoncurrentAssetsAbstract" xml:lang="en-US">Non-current assets [abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_NoncurrentAssetsAbstract" xml:lang="en-US">Non-current assets</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NoncurrentAssetsAbstract" xlink:to="lab_ifrs-full_NoncurrentAssetsAbstract" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PropertyPlantAndEquipment" xlink:label="loc_ifrs-full_PropertyPlantAndEquipment" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_PropertyPlantAndEquipment" xml:lang="en-US">Property, plant and equipment</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_PropertyPlantAndEquipment" xml:lang="en-US">Property and equipment</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_ifrs-full_PropertyPlantAndEquipment" xml:lang="en-US">Beginning Balance</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_ifrs-full_PropertyPlantAndEquipment" xml:lang="en-US">Ending Balance</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PropertyPlantAndEquipment" xlink:to="lab_ifrs-full_PropertyPlantAndEquipment" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IntangibleAssetsOtherThanGoodwill" xlink:label="loc_ifrs-full_IntangibleAssetsOtherThanGoodwill" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_IntangibleAssetsOtherThanGoodwill" xml:lang="en-US">Intangible assets other than goodwill</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_IntangibleAssetsOtherThanGoodwill" xml:lang="en-US">Intangible assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_ifrs-full_IntangibleAssetsOtherThanGoodwill" xml:lang="en-US">Beginning Balance</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_ifrs-full_IntangibleAssetsOtherThanGoodwill" xml:lang="en-US">Ending Balance</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IntangibleAssetsOtherThanGoodwill" xlink:to="lab_ifrs-full_IntangibleAssetsOtherThanGoodwill" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentAssets" xlink:label="loc_ifrs-full_NoncurrentAssets" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_NoncurrentAssets" xml:lang="en-US">Non-current assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_ifrs-full_NoncurrentAssets" xml:lang="en-US">Total&#160;non-current&#160;assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_NoncurrentAssets" xml:lang="en-US">Non-current assets</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NoncurrentAssets" xlink:to="lab_ifrs-full_NoncurrentAssets" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RightofuseAssets" xlink:label="loc_ifrs-full_RightofuseAssets" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_RightofuseAssets" xml:lang="en-US">Right-of-use assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/presentationGuidance" xlink:label="lab_ifrs-full_RightofuseAssets" xml:lang="en-US">Right-of-use-assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_ifrs-full_RightofuseAssets" xml:lang="en-US">Beginning balance</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_ifrs-full_RightofuseAssets" xml:lang="en-US">Ending balance</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RightofuseAssets" xlink:to="lab_ifrs-full_RightofuseAssets" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DeferredFinancingAndTransactionCosts" xlink:label="loc_thtx_DeferredFinancingAndTransactionCosts" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DeferredFinancingAndTransactionCosts" xml:lang="en-US">Deferred Financing And Transaction Costs</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_DeferredFinancingAndTransactionCosts" xml:lang="en-US">Deferred financing and transaction costs</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DeferredFinancingAndTransactionCosts" xlink:to="lab_thtx_DeferredFinancingAndTransactionCosts" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DeferredFinancingAndTransactionCosts" xml:lang="en-US">Deferred financing and transaction costs.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DeferredTaxAssetsNonCurrent" xlink:label="loc_thtx_DeferredTaxAssetsNonCurrent" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DeferredTaxAssetsNonCurrent" xml:lang="en-US">Deferred Tax Assets Non Current</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_DeferredTaxAssetsNonCurrent" xml:lang="en-US">Deferred tax assets</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DeferredTaxAssetsNonCurrent" xlink:to="lab_thtx_DeferredTaxAssetsNonCurrent" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DeferredTaxAssetsNonCurrent" xml:lang="en-US">Deferred tax assets non current.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherNoncurrentFinancialAssets" xlink:label="loc_ifrs-full_OtherNoncurrentFinancialAssets" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_OtherNoncurrentFinancialAssets" xml:lang="en-US">Other non-current financial assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_OtherNoncurrentFinancialAssets" xml:lang="en-US">Bonds and money market funds</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_OtherNoncurrentFinancialAssets" xml:lang="en-US">Non-current&#160;portion</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherNoncurrentFinancialAssets" xlink:to="lab_ifrs-full_OtherNoncurrentFinancialAssets" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Assets" xlink:label="loc_ifrs-full_Assets" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_Assets" xml:lang="en-US">Assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_ifrs-full_Assets" xml:lang="en-US">Total assets</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_Assets" xlink:to="lab_ifrs-full_Assets" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LiabilitiesAbstract" xlink:label="loc_ifrs-full_LiabilitiesAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_LiabilitiesAbstract" xml:lang="en-US">Liabilities [abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_LiabilitiesAbstract" xml:lang="en-US">Liabilities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LiabilitiesAbstract" xlink:to="lab_ifrs-full_LiabilitiesAbstract" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentLiabilitiesAbstract" xlink:label="loc_ifrs-full_CurrentLiabilitiesAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_CurrentLiabilitiesAbstract" xml:lang="en-US">Current liabilities [abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_CurrentLiabilitiesAbstract" xml:lang="en-US">Current liabilities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentLiabilitiesAbstract" xlink:to="lab_ifrs-full_CurrentLiabilitiesAbstract" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TradeAndOtherCurrentPayables" xlink:label="loc_ifrs-full_TradeAndOtherCurrentPayables" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_TradeAndOtherCurrentPayables" xml:lang="en-US">Trade and other current payables</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_TradeAndOtherCurrentPayables" xml:lang="en-US">Accounts payable and accrued liabilities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_ifrs-full_TradeAndOtherCurrentPayables" xml:lang="en-US">Total</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_TradeAndOtherCurrentPayables" xml:lang="en-US">Accounts payable and accrued liabilities carrying amount</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_ifrs-full_TradeAndOtherCurrentPayables" xml:lang="en-US">Accounts payable and accrued liabilities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TradeAndOtherCurrentPayables" xlink:to="lab_ifrs-full_TradeAndOtherCurrentPayables" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherShorttermProvisions" xlink:label="loc_ifrs-full_OtherShorttermProvisions" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_OtherShorttermProvisions" xml:lang="en-US">Other current provisions</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_OtherShorttermProvisions" xml:lang="en-US">Provisions</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_ifrs-full_OtherShorttermProvisions" xml:lang="en-US">Beginning Balance</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_ifrs-full_OtherShorttermProvisions" xml:lang="en-US">Ending Balance</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherShorttermProvisions" xlink:to="lab_ifrs-full_OtherShorttermProvisions" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentDeferredIncomeOtherThanCurrentContractLiabilities" xlink:label="loc_ifrs-full_CurrentDeferredIncomeOtherThanCurrentContractLiabilities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_CurrentDeferredIncomeOtherThanCurrentContractLiabilities" xml:lang="en-US">Current deferred income other than current contract liabilities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_CurrentDeferredIncomeOtherThanCurrentContractLiabilities" xml:lang="en-US">Deferred revenue</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentDeferredIncomeOtherThanCurrentContractLiabilities" xlink:to="lab_ifrs-full_CurrentDeferredIncomeOtherThanCurrentContractLiabilities" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentLiabilities" xlink:label="loc_ifrs-full_CurrentLiabilities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_CurrentLiabilities" xml:lang="en-US">Current liabilities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_ifrs-full_CurrentLiabilities" xml:lang="en-US">Total current liabilities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentLiabilities" xlink:to="lab_ifrs-full_CurrentLiabilities" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentLeaseLiabilities" xlink:label="loc_ifrs-full_CurrentLeaseLiabilities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_CurrentLeaseLiabilities" xml:lang="en-US">Current lease liabilities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_CurrentLeaseLiabilities" xml:lang="en-US">Current portion of lease liabilities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_ifrs-full_CurrentLeaseLiabilities" xml:lang="en-US">Current portion</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentLeaseLiabilities" xlink:to="lab_ifrs-full_CurrentLeaseLiabilities" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_CurrentTaxLiabilitiesCurrentNet" xlink:label="loc_thtx_CurrentTaxLiabilitiesCurrentNet" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_CurrentTaxLiabilitiesCurrentNet" xml:lang="en-US">Current Tax Liabilities Current Net</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_CurrentTaxLiabilitiesCurrentNet" xml:lang="en-US">Income taxes payable</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_CurrentTaxLiabilitiesCurrentNet" xlink:to="lab_thtx_CurrentTaxLiabilitiesCurrentNet" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_CurrentTaxLiabilitiesCurrentNet" xml:lang="en-US">Current tax liabilities current net.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentPortionOfLongtermBorrowings" xlink:label="loc_ifrs-full_CurrentPortionOfLongtermBorrowings" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_CurrentPortionOfLongtermBorrowings" xml:lang="en-US">Current portion of non-current borrowings</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_CurrentPortionOfLongtermBorrowings" xml:lang="en-US">Current portion of long-term debt</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_CurrentPortionOfLongtermBorrowings" xml:lang="en-US">Current portion of non-current borrowings</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentPortionOfLongtermBorrowings" xlink:to="lab_ifrs-full_CurrentPortionOfLongtermBorrowings" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_WarrantsCurrent" xlink:label="loc_thtx_WarrantsCurrent" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_WarrantsCurrent" xml:lang="en-US">Warrants Current</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_WarrantsCurrent" xml:lang="en-US">Marathon Warrants</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_WarrantsCurrent" xlink:to="lab_thtx_WarrantsCurrent" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_WarrantsCurrent" xml:lang="en-US">Warrants current.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentLiabilitiesAbstract" xlink:label="loc_ifrs-full_NoncurrentLiabilitiesAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_NoncurrentLiabilitiesAbstract" xml:lang="en-US">Non-current liabilities [abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_NoncurrentLiabilitiesAbstract" xml:lang="en-US">Non-current&#160;liabilities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NoncurrentLiabilitiesAbstract" xlink:to="lab_ifrs-full_NoncurrentLiabilitiesAbstract" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherNoncurrentLiabilities" xlink:label="loc_ifrs-full_OtherNoncurrentLiabilities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_OtherNoncurrentLiabilities" xml:lang="en-US">Other non-current liabilities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_OtherNoncurrentLiabilities" xml:lang="en-US">Other liabilities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherNoncurrentLiabilities" xlink:to="lab_ifrs-full_OtherNoncurrentLiabilities" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentLiabilities" xlink:label="loc_ifrs-full_NoncurrentLiabilities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_NoncurrentLiabilities" xml:lang="en-US">Non-current liabilities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_ifrs-full_NoncurrentLiabilities" xml:lang="en-US">Total&#160;non-current&#160;liabilities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NoncurrentLiabilities" xlink:to="lab_ifrs-full_NoncurrentLiabilities" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentLeaseLiabilities" xlink:label="loc_ifrs-full_NoncurrentLeaseLiabilities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_NoncurrentLeaseLiabilities" xml:lang="en-US">Non-current lease liabilities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_NoncurrentLeaseLiabilities" xml:lang="en-US">Lease liabilities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_NoncurrentLeaseLiabilities" xml:lang="en-US">Non-current portion</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NoncurrentLeaseLiabilities" xlink:to="lab_ifrs-full_NoncurrentLeaseLiabilities" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LongtermBorrowings" xlink:label="loc_ifrs-full_LongtermBorrowings" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_LongtermBorrowings" xml:lang="en-US">Non-current portion of non-current borrowings</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_LongtermBorrowings" xml:lang="en-US">Loan-term debt</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LongtermBorrowings" xlink:to="lab_ifrs-full_LongtermBorrowings" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Liabilities" xlink:label="loc_ifrs-full_Liabilities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_Liabilities" xml:lang="en-US">Liabilities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_ifrs-full_Liabilities" xml:lang="en-US">Total liabilities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_Liabilities" xlink:to="lab_ifrs-full_Liabilities" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EquityAbstract" xlink:label="loc_ifrs-full_EquityAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_EquityAbstract" xml:lang="en-US">Equity [abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_EquityAbstract" xml:lang="en-US">Equity</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_EquityAbstract" xlink:to="lab_ifrs-full_EquityAbstract" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IssuedCapital" xlink:label="loc_ifrs-full_IssuedCapital" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_IssuedCapital" xml:lang="en-US">Issued capital</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_IssuedCapital" xml:lang="en-US">Share capital, warrants and subscription receipts</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_IssuedCapital" xml:lang="en-US">Issued capital</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IssuedCapital" xlink:to="lab_ifrs-full_IssuedCapital" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdditionalPaidinCapital" xlink:label="loc_ifrs-full_AdditionalPaidinCapital" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_AdditionalPaidinCapital" xml:lang="en-US">Additional paid-in capital</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_AdditionalPaidinCapital" xml:lang="en-US">Contributed surplus</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdditionalPaidinCapital" xlink:to="lab_ifrs-full_AdditionalPaidinCapital" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RetainedEarnings" xlink:label="loc_ifrs-full_RetainedEarnings" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_RetainedEarnings" xml:lang="en-US">Retained earnings</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_RetainedEarnings" xml:lang="en-US">Deficit</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_ifrs-full_RetainedEarnings" xml:lang="en-US">Retained earnings</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RetainedEarnings" xlink:to="lab_ifrs-full_RetainedEarnings" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AccumulatedOtherComprehensiveIncome" xlink:label="loc_ifrs-full_AccumulatedOtherComprehensiveIncome" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_AccumulatedOtherComprehensiveIncome" xml:lang="en-US">Accumulated other comprehensive income</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_AccumulatedOtherComprehensiveIncome" xml:lang="en-US">Accumulated other comprehensive income</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_AccumulatedOtherComprehensiveIncome" xml:lang="en-US">Accumulated other comprehensive income</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AccumulatedOtherComprehensiveIncome" xlink:to="lab_ifrs-full_AccumulatedOtherComprehensiveIncome" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Equity" xlink:label="loc_ifrs-full_Equity" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_Equity" xml:lang="en-US">Equity</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_ifrs-full_Equity" xml:lang="en-US">Total equity</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_ifrs-full_Equity" xml:lang="en-US">Beginning balance</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_ifrs-full_Equity" xml:lang="en-US">Ending Balance</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_Equity" xlink:to="lab_ifrs-full_Equity" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EquityAndLiabilities" xlink:label="loc_ifrs-full_EquityAndLiabilities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_EquityAndLiabilities" xml:lang="en-US">Equity and liabilities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_ifrs-full_EquityAndLiabilities" xml:lang="en-US">Total liabilities and equity</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_EquityAndLiabilities" xlink:to="lab_ifrs-full_EquityAndLiabilities" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_StatementOfComprehensiveIncomeAbstract" xlink:label="loc_ifrs-full_StatementOfComprehensiveIncomeAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_StatementOfComprehensiveIncomeAbstract" xml:lang="en-US">Statement of comprehensive income [abstract]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_StatementOfComprehensiveIncomeAbstract" xlink:to="lab_ifrs-full_StatementOfComprehensiveIncomeAbstract" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Revenue" xlink:label="loc_ifrs-full_Revenue" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_Revenue" xml:lang="en-US">Revenue</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_Revenue" xml:lang="en-US">Revenue</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_Revenue" xml:lang="en-US">Net sales</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_Revenue" xlink:to="lab_ifrs-full_Revenue" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_OperatingExpenseAbstract" xlink:label="loc_thtx_OperatingExpenseAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_OperatingExpenseAbstract" xml:lang="en-US">Operating Expense [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_OperatingExpenseAbstract" xml:lang="en-US">Operating expenses</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_OperatingExpenseAbstract" xlink:to="lab_thtx_OperatingExpenseAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_OperatingExpenseAbstract" xml:lang="en-US">Operating expense.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CostOfSales" xlink:label="loc_ifrs-full_CostOfSales" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_CostOfSales" xml:lang="en-US">Cost of sales</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_CostOfSales" xml:lang="en-US">Cost of goods sold</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CostOfSales" xlink:to="lab_ifrs-full_CostOfSales" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_AmortizationOfOtherAssets" xlink:label="loc_thtx_AmortizationOfOtherAssets" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_AmortizationOfOtherAssets" xml:lang="en-US">Amortization Of Other Assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_AmortizationOfOtherAssets" xml:lang="en-US">Amortization of other asset</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_AmortizationOfOtherAssets" xlink:to="lab_thtx_AmortizationOfOtherAssets" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_AmortizationOfOtherAssets" xml:lang="en-US">Amortization of other assets</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_ResearchAndDevelopmentExpenseNetOfTaxCredits" xlink:label="loc_thtx_ResearchAndDevelopmentExpenseNetOfTaxCredits" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_ResearchAndDevelopmentExpenseNetOfTaxCredits" xml:lang="en-US">Research And Development Expense Net of Tax Credits</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_ResearchAndDevelopmentExpenseNetOfTaxCredits" xml:lang="en-US">Research and development expenses, net of tax credits of $ 1,666 (2023 - $ 539; 2022 &#8211; $ 316)</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_ResearchAndDevelopmentExpenseNetOfTaxCredits" xlink:to="lab_thtx_ResearchAndDevelopmentExpenseNetOfTaxCredits" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_ResearchAndDevelopmentExpenseNetOfTaxCredits" xml:lang="en-US">Research and development expense net of tax credits.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_SellingExpense" xlink:label="loc_ifrs-full_SellingExpense" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_SellingExpense" xml:lang="en-US">Selling expense</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_SellingExpense" xml:lang="en-US">Selling expenses</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_SellingExpense" xlink:to="lab_ifrs-full_SellingExpense" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GeneralAndAdministrativeExpense" xlink:label="loc_ifrs-full_GeneralAndAdministrativeExpense" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_GeneralAndAdministrativeExpense" xml:lang="en-US">General and administrative expense</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_GeneralAndAdministrativeExpense" xml:lang="en-US">General and administrative expenses</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GeneralAndAdministrativeExpense" xlink:to="lab_ifrs-full_GeneralAndAdministrativeExpense" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OperatingExpense" xlink:label="loc_ifrs-full_OperatingExpense" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_OperatingExpense" xml:lang="en-US">Operating expense</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_ifrs-full_OperatingExpense" xml:lang="en-US">Total operating expenses</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OperatingExpense" xlink:to="lab_ifrs-full_OperatingExpense" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLossFromOperatingActivities" xlink:label="loc_ifrs-full_ProfitLossFromOperatingActivities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ProfitLossFromOperatingActivities" xml:lang="en-US">Profit (loss) from operating activities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_ifrs-full_ProfitLossFromOperatingActivities" xml:lang="en-US">Profit (loss) from operating activities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProfitLossFromOperatingActivities" xlink:to="lab_ifrs-full_ProfitLossFromOperatingActivities" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinanceIncome" xlink:label="loc_ifrs-full_FinanceIncome" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_FinanceIncome" xml:lang="en-US">Finance income</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_FinanceIncome" xml:lang="en-US">Finance income</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_ifrs-full_FinanceIncome" xml:lang="en-US">Finance income</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinanceIncome" xlink:to="lab_ifrs-full_FinanceIncome" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_FinanceCostsAndGainsLossesOnForeignCurrency" xlink:label="loc_thtx_FinanceCostsAndGainsLossesOnForeignCurrency" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_FinanceCostsAndGainsLossesOnForeignCurrency" xml:lang="en-US">Finance Costs And Gains Losses On Foreign Currency</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_thtx_FinanceCostsAndGainsLossesOnForeignCurrency" xml:lang="en-US">Finance costs</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:label="lab_thtx_FinanceCostsAndGainsLossesOnForeignCurrency" xml:lang="en-US">Finance costs</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_FinanceCostsAndGainsLossesOnForeignCurrency" xlink:to="lab_thtx_FinanceCostsAndGainsLossesOnForeignCurrency" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_FinanceCostsAndGainsLossesOnForeignCurrency" xml:lang="en-US">Finance costs and gains losses on foreign currency.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLossBeforeTax" xlink:label="loc_ifrs-full_ProfitLossBeforeTax" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ProfitLossBeforeTax" xml:lang="en-US">Profit (loss) before tax</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_ifrs-full_ProfitLossBeforeTax" xml:lang="en-US">Loss before income taxes</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProfitLossBeforeTax" xlink:to="lab_ifrs-full_ProfitLossBeforeTax" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_FinanceIncomeCostAndGainsLossesOnForeignCurrency" xlink:label="loc_thtx_FinanceIncomeCostAndGainsLossesOnForeignCurrency" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_FinanceIncomeCostAndGainsLossesOnForeignCurrency" xml:lang="en-US">Finance Income Cost And Gains Losses On Foreign Currency</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_thtx_FinanceIncomeCostAndGainsLossesOnForeignCurrency" xml:lang="en-US">Finance income cost</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_FinanceIncomeCostAndGainsLossesOnForeignCurrency" xlink:to="lab_thtx_FinanceIncomeCostAndGainsLossesOnForeignCurrency" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_FinanceIncomeCostAndGainsLossesOnForeignCurrency" xml:lang="en-US">Finance income cost and gains losses on foreign currency.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLoss" xlink:label="loc_ifrs-full_ProfitLoss" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ProfitLoss" xml:lang="en-US">Profit (loss)</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_ifrs-full_ProfitLoss" xml:lang="en-US">Net loss</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_ProfitLoss" xml:lang="en-US">Net loss</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_ProfitLoss" xml:lang="en-US">Net loss</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProfitLoss" xlink:to="lab_ifrs-full_ProfitLoss" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncomeTaxExpenseContinuingOperations" xlink:label="loc_ifrs-full_IncomeTaxExpenseContinuingOperations" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_IncomeTaxExpenseContinuingOperations" xml:lang="en-US">Tax expense (income)</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_ifrs-full_IncomeTaxExpenseContinuingOperations" xml:lang="en-US">Income tax expense</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_ifrs-full_IncomeTaxExpenseContinuingOperations" xml:lang="en-US">Total current and deferred tax expense</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncomeTaxExpenseContinuingOperations" xlink:to="lab_ifrs-full_IncomeTaxExpenseContinuingOperations" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeAbstract" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_OtherComprehensiveIncomeAbstract" xml:lang="en-US">Other comprehensive income [abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_OtherComprehensiveIncomeAbstract" xml:lang="en-US">Other comprehensive income (loss), net of tax</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_OtherComprehensiveIncomeAbstract" xml:lang="en-US">Other comprehensive income:</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeAbstract" xlink:to="lab_ifrs-full_OtherComprehensiveIncomeAbstract" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract" xlink:label="loc_ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract" xml:lang="en-US">Components of other comprehensive income that will be reclassified to profit or loss, net of tax [abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract" xml:lang="en-US">Items that may be reclassified to net profit (loss) in the future</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract" xlink:to="lab_ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GainsLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeNetOfTax" xlink:label="loc_ifrs-full_GainsLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeNetOfTax" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_GainsLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeNetOfTax" xml:lang="en-US">Gains (losses) on financial assets measured at fair value through other comprehensive income, net of tax</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_GainsLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeNetOfTax" xml:lang="en-US">Net change in fair value of financial assets at fair value through other comprehensive income ("FVOCI")</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_GainsLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeNetOfTax" xml:lang="en-US">Net change in fair value of FVOCI financial assets, net of tax</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GainsLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeNetOfTax" xlink:to="lab_ifrs-full_GainsLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeNetOfTax" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation" xml:lang="en-US">Other comprehensive income, net of tax, exchange differences on translation</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation" xml:lang="en-US">Exchange differences on translation of foreign operations</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation" xml:lang="en-US">Exchange differences on translation of foreign operations</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation" xlink:to="lab_ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax" xml:lang="en-US">Other comprehensive income that will be reclassified to profit or loss, net of tax</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax" xml:lang="en-US">Other comprehensive income that will be reclassified to profit or loss, net of tax</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax" xlink:to="lab_ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ComprehensiveIncome" xlink:label="loc_ifrs-full_ComprehensiveIncome" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ComprehensiveIncome" xml:lang="en-US">Comprehensive income</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_ifrs-full_ComprehensiveIncome" xml:lang="en-US">Total comprehensive loss</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ComprehensiveIncome" xlink:to="lab_ifrs-full_ComprehensiveIncome" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EarningsPerShareAbstract" xlink:label="loc_ifrs-full_EarningsPerShareAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_EarningsPerShareAbstract" xml:lang="en-US">Earnings per share [abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_EarningsPerShareAbstract" xml:lang="en-US">Loss per share</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_EarningsPerShareAbstract" xlink:to="lab_ifrs-full_EarningsPerShareAbstract" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DilutedEarningsLossPerShare" xlink:label="loc_ifrs-full_DilutedEarningsLossPerShare" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DilutedEarningsLossPerShare" xml:lang="en-US">Diluted earnings (loss) per share</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DilutedEarningsLossPerShare" xml:lang="en-US">Diluted earnings (loss) per share</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DilutedEarningsLossPerShare" xlink:to="lab_ifrs-full_DilutedEarningsLossPerShare" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BasicEarningsLossPerShare" xlink:label="loc_ifrs-full_BasicEarningsLossPerShare" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_BasicEarningsLossPerShare" xml:lang="en-US">Basic earnings (loss) per share</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_BasicEarningsLossPerShare" xml:lang="en-US">Basic earnings (loss) per share</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_BasicEarningsLossPerShare" xlink:to="lab_ifrs-full_BasicEarningsLossPerShare" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_OtherComprehensiveIncomeNetOfTaxResearchAndDevelopmentCost" xlink:label="loc_thtx_OtherComprehensiveIncomeNetOfTaxResearchAndDevelopmentCost" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_OtherComprehensiveIncomeNetOfTaxResearchAndDevelopmentCost" xml:lang="en-US">Other Comprehensive Income Net Of Tax Research And Development Cost</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_OtherComprehensiveIncomeNetOfTaxResearchAndDevelopmentCost" xml:lang="en-US">Other Comprehensive Income Net Of Tax Research and Development Cost</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_OtherComprehensiveIncomeNetOfTaxResearchAndDevelopmentCost" xlink:to="lab_thtx_OtherComprehensiveIncomeNetOfTaxResearchAndDevelopmentCost" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_OtherComprehensiveIncomeNetOfTaxResearchAndDevelopmentCost" xml:lang="en-US">Other comprehensive income net of tax research and development cost.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_StatementOfChangesInEquityAbstract" xlink:label="loc_ifrs-full_StatementOfChangesInEquityAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_StatementOfChangesInEquityAbstract" xml:lang="en-US">Statement of changes in equity [abstract]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_StatementOfChangesInEquityAbstract" xlink:to="lab_ifrs-full_StatementOfChangesInEquityAbstract" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_StatementOfChangesInEquityTable" xlink:label="loc_ifrs-full_StatementOfChangesInEquityTable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_StatementOfChangesInEquityTable" xml:lang="en-US">Statement of changes in equity [table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_StatementOfChangesInEquityTable" xlink:to="lab_ifrs-full_StatementOfChangesInEquityTable" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ComponentsOfEquityAxis" xlink:label="loc_ifrs-full_ComponentsOfEquityAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ComponentsOfEquityAxis" xml:lang="en-US">Components of equity [axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ComponentsOfEquityAxis" xlink:to="lab_ifrs-full_ComponentsOfEquityAxis" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ComponentsOfEquityDomain" xlink:label="loc_ifrs-full_ComponentsOfEquityDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ComponentsOfEquityDomain" xml:lang="en-US">Components of equity [domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ComponentsOfEquityDomain" xlink:to="lab_ifrs-full_ComponentsOfEquityDomain" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdditionalPaidinCapitalMember" xlink:label="loc_ifrs-full_AdditionalPaidinCapitalMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_AdditionalPaidinCapitalMember" xml:lang="en-US">Additional paid-in capital [member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_AdditionalPaidinCapitalMember" xml:lang="en-US">Contributed surplus</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdditionalPaidinCapitalMember" xlink:to="lab_ifrs-full_AdditionalPaidinCapitalMember" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RetainedEarningsMember" xlink:label="loc_ifrs-full_RetainedEarningsMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_RetainedEarningsMember" xml:lang="en-US">Retained earnings [member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_RetainedEarningsMember" xml:lang="en-US">Deficit</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RetainedEarningsMember" xlink:to="lab_ifrs-full_RetainedEarningsMember" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AccumulatedOtherComprehensiveIncomeMember" xlink:label="loc_ifrs-full_AccumulatedOtherComprehensiveIncomeMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_AccumulatedOtherComprehensiveIncomeMember" xml:lang="en-US">Accumulated other comprehensive income [member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_AccumulatedOtherComprehensiveIncomeMember" xml:lang="en-US">Accumulated other comprehensive income (loss)</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AccumulatedOtherComprehensiveIncomeMember" xlink:to="lab_ifrs-full_AccumulatedOtherComprehensiveIncomeMember" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IssuedCapitalMember" xlink:label="loc_ifrs-full_IssuedCapitalMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_IssuedCapitalMember" xml:lang="en-US">Issued capital [member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_IssuedCapitalMember" xml:lang="en-US">Share capital Subscription receipts and Public Offering Warrants</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IssuedCapitalMember" xlink:to="lab_ifrs-full_IssuedCapitalMember" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ReserveOfEquityComponentOfConvertibleInstrumentsMember" xlink:label="loc_ifrs-full_ReserveOfEquityComponentOfConvertibleInstrumentsMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ReserveOfEquityComponentOfConvertibleInstrumentsMember" xml:lang="en-US">Reserve of equity component of convertible instruments [member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_ReserveOfEquityComponentOfConvertibleInstrumentsMember" xml:lang="en-US">Equity component of convertible unsecured senior notes</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ReserveOfEquityComponentOfConvertibleInstrumentsMember" xlink:to="lab_ifrs-full_ReserveOfEquityComponentOfConvertibleInstrumentsMember" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_StatementOfChangesInEquityLineItems" xlink:label="loc_ifrs-full_StatementOfChangesInEquityLineItems" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_StatementOfChangesInEquityLineItems" xml:lang="en-US">Statement of changes in equity [line items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_StatementOfChangesInEquityLineItems" xlink:to="lab_ifrs-full_StatementOfChangesInEquityLineItems" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NumberOfSharesOutstanding" xlink:label="loc_ifrs-full_NumberOfSharesOutstanding" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_NumberOfSharesOutstanding" xml:lang="en-US">Number of shares outstanding</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_ifrs-full_NumberOfSharesOutstanding" xml:lang="en-US">Beginning balance, Shares</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_ifrs-full_NumberOfSharesOutstanding" xml:lang="en-US">Ending Balance, Shares</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NumberOfSharesOutstanding" xlink:to="lab_ifrs-full_NumberOfSharesOutstanding" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_MiscellaneousComponentsOfEquityAbstract" xlink:label="loc_ifrs-full_MiscellaneousComponentsOfEquityAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_MiscellaneousComponentsOfEquityAbstract" xml:lang="en-US">Miscellaneous components of equity [abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_MiscellaneousComponentsOfEquityAbstract" xml:lang="en-US">Transactions with owners, recorded directly in equity</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_MiscellaneousComponentsOfEquityAbstract" xlink:to="lab_ifrs-full_MiscellaneousComponentsOfEquityAbstract" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_ShareIssueCosts" xlink:label="loc_thtx_ShareIssueCosts" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_ShareIssueCosts" xml:lang="en-US">Share Issue Costs</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_ShareIssueCosts" xml:lang="en-US">Share issue costs</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_ShareIssueCosts" xlink:to="lab_thtx_ShareIssueCosts" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_ShareIssueCosts" xml:lang="en-US">Share issue costs.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_StockIssuedDuringThePeriodSharesConversionOfConvertibleSecurities" xlink:label="loc_thtx_StockIssuedDuringThePeriodSharesConversionOfConvertibleSecurities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_StockIssuedDuringThePeriodSharesConversionOfConvertibleSecurities" xml:lang="en-US">Stock Issued During the Period Shares Conversion Of Convertible Securities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_StockIssuedDuringThePeriodSharesConversionOfConvertibleSecurities" xml:lang="en-US">Conversion of convertible unsecured senior notes (Shares)</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_StockIssuedDuringThePeriodSharesConversionOfConvertibleSecurities" xlink:to="lab_thtx_StockIssuedDuringThePeriodSharesConversionOfConvertibleSecurities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_StockIssuedDuringThePeriodSharesConversionOfConvertibleSecurities" xml:lang="en-US">Stock issued during the period shares conversion of convertible securities.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_StockIssuedDuringThePeriodValueConversionOfConvertibleSecurities" xlink:label="loc_thtx_StockIssuedDuringThePeriodValueConversionOfConvertibleSecurities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_StockIssuedDuringThePeriodValueConversionOfConvertibleSecurities" xml:lang="en-US">Stock Issued During the Period Value Conversion of Convertible Securities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_StockIssuedDuringThePeriodValueConversionOfConvertibleSecurities" xml:lang="en-US">Conversion of convertible unsecured senior notes</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_StockIssuedDuringThePeriodValueConversionOfConvertibleSecurities" xlink:to="lab_thtx_StockIssuedDuringThePeriodValueConversionOfConvertibleSecurities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_StockIssuedDuringThePeriodValueConversionOfConvertibleSecurities" xml:lang="en-US">Stock issued during the period value conversion of convertible securities.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_StockIssuedDuringThePeriodSharesNewIssues" xlink:label="loc_thtx_StockIssuedDuringThePeriodSharesNewIssues" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_StockIssuedDuringThePeriodSharesNewIssues" xml:lang="en-US">Stock Issued During the Period Shares New Issues</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_StockIssuedDuringThePeriodSharesNewIssues" xml:lang="en-US">Public issue of common shares (Shares)</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_StockIssuedDuringThePeriodSharesNewIssues" xlink:to="lab_thtx_StockIssuedDuringThePeriodSharesNewIssues" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_StockIssuedDuringThePeriodSharesNewIssues" xml:lang="en-US">Stock issued during the period shares new issues.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_StockIssuedDuringThePeriodValueNewIssues" xlink:label="loc_thtx_StockIssuedDuringThePeriodValueNewIssues" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_StockIssuedDuringThePeriodValueNewIssues" xml:lang="en-US">Stock Issued During the Period Value New Issues</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_StockIssuedDuringThePeriodValueNewIssues" xml:lang="en-US">Public issue of common shares</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_StockIssuedDuringThePeriodValueNewIssues" xlink:to="lab_thtx_StockIssuedDuringThePeriodValueNewIssues" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_StockIssuedDuringThePeriodValueNewIssues" xml:lang="en-US">Stock issued during the period value new issues.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_NumberOfSharesIssuedThroughAtmProgram" xlink:label="loc_thtx_NumberOfSharesIssuedThroughAtmProgram" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_NumberOfSharesIssuedThroughAtmProgram" xml:lang="en-US">Number Of Shares Issued Through ATM Program</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_NumberOfSharesIssuedThroughAtmProgram" xml:lang="en-US">Share issue - ATM program (shares)</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_NumberOfSharesIssuedThroughAtmProgram" xlink:to="lab_thtx_NumberOfSharesIssuedThroughAtmProgram" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_NumberOfSharesIssuedThroughAtmProgram" xml:lang="en-US">Number of shares issued through atm program.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_IncreaseDecreaseThroughSharesIssuedAtmProgramValue" xlink:label="loc_thtx_IncreaseDecreaseThroughSharesIssuedAtmProgramValue" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_IncreaseDecreaseThroughSharesIssuedAtmProgramValue" xml:lang="en-US">Increase Decrease Through Shares Issued ATM Program Value</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_IncreaseDecreaseThroughSharesIssuedAtmProgramValue" xml:lang="en-US">Share issue - ATM program</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_IncreaseDecreaseThroughSharesIssuedAtmProgramValue" xlink:to="lab_thtx_IncreaseDecreaseThroughSharesIssuedAtmProgramValue" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_IncreaseDecreaseThroughSharesIssuedAtmProgramValue" xml:lang="en-US">Increase decrease through shares issued atm program value.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseThroughConversionOfConvertibleInstruments" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughConversionOfConvertibleInstruments" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughConversionOfConvertibleInstruments" xml:lang="en-US">Increase (decrease) through conversion of convertible instruments, equity</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughConversionOfConvertibleInstruments" xml:lang="en-US">Repurchase of convertible unsecured senior notes</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/presentationGuidance" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughConversionOfConvertibleInstruments" xml:lang="en-US">Increase Decrease Through Conversion Of Convertible Instruments</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseThroughConversionOfConvertibleInstruments" xlink:to="lab_ifrs-full_IncreaseDecreaseThroughConversionOfConvertibleInstruments" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_ShareBasedCompensationPlanAbstract" xlink:label="loc_thtx_ShareBasedCompensationPlanAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_ShareBasedCompensationPlanAbstract" xml:lang="en-US">Share Based Compensation Plan [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_ShareBasedCompensationPlanAbstract" xml:lang="en-US">Share-based compensation plan</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_ShareBasedCompensationPlanAbstract" xlink:to="lab_thtx_ShareBasedCompensationPlanAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_ShareBasedCompensationPlanAbstract" xml:lang="en-US">Share based compensation plan.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions" xml:lang="en-US">Increase (decrease) through share-based payment transactions, equity</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions" xml:lang="en-US">Share-based compensation for stock option plan</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions" xlink:to="lab_ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_IncreaseDecreaseInUnrecognizedTaxAssetsRelatingToShareIssueCosts" xlink:label="loc_thtx_IncreaseDecreaseInUnrecognizedTaxAssetsRelatingToShareIssueCosts" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_IncreaseDecreaseInUnrecognizedTaxAssetsRelatingToShareIssueCosts" xml:lang="en-US">Increase Decrease In Unrecognized Tax Assets Relating To Share Issue Costs</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_IncreaseDecreaseInUnrecognizedTaxAssetsRelatingToShareIssueCosts" xml:lang="en-US">Increase Decrease In Unrecognized Tax Assets Relating To Share Issue Costs</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_IncreaseDecreaseInUnrecognizedTaxAssetsRelatingToShareIssueCosts" xlink:to="lab_thtx_IncreaseDecreaseInUnrecognizedTaxAssetsRelatingToShareIssueCosts" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_IncreaseDecreaseInUnrecognizedTaxAssetsRelatingToShareIssueCosts" xml:lang="en-US">Increase decrease in unrecognized tax assets relating to share issue costs.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_ExerciseOfStockOptionsAbstract" xlink:label="loc_thtx_ExerciseOfStockOptionsAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_ExerciseOfStockOptionsAbstract" xml:lang="en-US">Exercise Of Stock Options [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_ExerciseOfStockOptionsAbstract" xml:lang="en-US">Exercise of Options:</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_ExerciseOfStockOptionsAbstract" xlink:to="lab_thtx_ExerciseOfStockOptionsAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_ExerciseOfStockOptionsAbstract" xml:lang="en-US">IncreaseDecreaseThroughSharebasedPaymentTransactions</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_IncreaseDecreaseThroughExerciseOfOptionsValue" xlink:label="loc_thtx_IncreaseDecreaseThroughExerciseOfOptionsValue" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_IncreaseDecreaseThroughExerciseOfOptionsValue" xml:lang="en-US">Increase Decrease Through Exercise Of Options Value</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_IncreaseDecreaseThroughExerciseOfOptionsValue" xml:lang="en-US">Monetary consideration</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_IncreaseDecreaseThroughExerciseOfOptionsValue" xlink:to="lab_thtx_IncreaseDecreaseThroughExerciseOfOptionsValue" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_IncreaseDecreaseThroughExerciseOfOptionsValue" xml:lang="en-US">Increase decrease through exercise of options value.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_IncreaseDecreaseThroughExerciseOfOptionsNumberOfShares" xlink:label="loc_thtx_IncreaseDecreaseThroughExerciseOfOptionsNumberOfShares" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_IncreaseDecreaseThroughExerciseOfOptionsNumberOfShares" xml:lang="en-US">Increase Decrease Through Exercise Of Options Number Of Shares</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_IncreaseDecreaseThroughExerciseOfOptionsNumberOfShares" xml:lang="en-US">Monetary consideration Shares</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_IncreaseDecreaseThroughExerciseOfOptionsNumberOfShares" xlink:to="lab_thtx_IncreaseDecreaseThroughExerciseOfOptionsNumberOfShares" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_IncreaseDecreaseThroughExerciseOfOptionsNumberOfShares" xml:lang="en-US">Increase decrease through exercise of options number of shares</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_ExerciseOfStockOptionsAttributedValue" xlink:label="loc_thtx_ExerciseOfStockOptionsAttributedValue" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_ExerciseOfStockOptionsAttributedValue" xml:lang="en-US">Exercise Of Stock Options Attributed Value</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_ExerciseOfStockOptionsAttributedValue" xml:lang="en-US">Attributed value</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_ExerciseOfStockOptionsAttributedValue" xlink:to="lab_thtx_ExerciseOfStockOptionsAttributedValue" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_ExerciseOfStockOptionsAttributedValue" xml:lang="en-US">Exercise of stock options attributed value</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseThroughTransactionsWithOwners" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughTransactionsWithOwners" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughTransactionsWithOwners" xml:lang="en-US">Increase (decrease) through transactions with owners, equity</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughTransactionsWithOwners" xml:lang="en-US">Total contributions by owners</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseThroughTransactionsWithOwners" xlink:to="lab_ifrs-full_IncreaseDecreaseThroughTransactionsWithOwners" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_IncreaseDecreaseThroughTransactionsWithOwnersNumberOfShares" xlink:label="loc_thtx_IncreaseDecreaseThroughTransactionsWithOwnersNumberOfShares" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_IncreaseDecreaseThroughTransactionsWithOwnersNumberOfShares" xml:lang="en-US">Increase Decrease Through Transactions With Owners Number Of Shares</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_IncreaseDecreaseThroughTransactionsWithOwnersNumberOfShares" xml:lang="en-US">Total contributions by owners shares</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_IncreaseDecreaseThroughTransactionsWithOwnersNumberOfShares" xlink:to="lab_thtx_IncreaseDecreaseThroughTransactionsWithOwnersNumberOfShares" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_IncreaseDecreaseThroughTransactionsWithOwnersNumberOfShares" xml:lang="en-US">Increase decrease through transactions with owners number of shares.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ComprehensiveIncomeAbstract" xlink:label="loc_ifrs-full_ComprehensiveIncomeAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ComprehensiveIncomeAbstract" xml:lang="en-US">Comprehensive income [abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_ComprehensiveIncomeAbstract" xml:lang="en-US">Total comprehensive loss</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ComprehensiveIncomeAbstract" xlink:to="lab_ifrs-full_ComprehensiveIncomeAbstract" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_StatementOfCashFlowsAbstract" xlink:label="loc_ifrs-full_StatementOfCashFlowsAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_StatementOfCashFlowsAbstract" xml:lang="en-US">Statement of cash flows [abstract]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_StatementOfCashFlowsAbstract" xlink:to="lab_ifrs-full_StatementOfCashFlowsAbstract" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract" xlink:label="loc_ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract" xml:lang="en-US">Cash flows from (used in) operating activities [abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract" xml:lang="en-US">Cash&#160;flows&#160;from&#160;(used&#160;in) Operating</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract" xlink:to="lab_ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForReconcileProfitLossAbstract" xlink:label="loc_ifrs-full_AdjustmentsForReconcileProfitLossAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_AdjustmentsForReconcileProfitLossAbstract" xml:lang="en-US">Adjustments to reconcile profit (loss) [abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_AdjustmentsForReconcileProfitLossAbstract" xml:lang="en-US">Adjustments for</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForReconcileProfitLossAbstract" xlink:to="lab_ifrs-full_AdjustmentsForReconcileProfitLossAbstract" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForDepreciationExpense" xlink:label="loc_ifrs-full_AdjustmentsForDepreciationExpense" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_AdjustmentsForDepreciationExpense" xml:lang="en-US">Adjustments for depreciation expense</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_AdjustmentsForDepreciationExpense" xml:lang="en-US">Depreciation of property and equipment</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForDepreciationExpense" xlink:to="lab_ifrs-full_AdjustmentsForDepreciationExpense" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForAmortisationExpense" xlink:label="loc_ifrs-full_AdjustmentsForAmortisationExpense" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_AdjustmentsForAmortisationExpense" xml:lang="en-US">Adjustments for amortisation expense</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_AdjustmentsForAmortisationExpense" xml:lang="en-US">Amortization of intangible assets and other asset</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForAmortisationExpense" xlink:to="lab_ifrs-full_AdjustmentsForAmortisationExpense" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForSharebasedPayments" xlink:label="loc_ifrs-full_AdjustmentsForSharebasedPayments" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_AdjustmentsForSharebasedPayments" xml:lang="en-US">Adjustments for share-based payments</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_AdjustmentsForSharebasedPayments" xml:lang="en-US">Share-based compensation for stock option plan&#160;and stock appreciation rights</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForSharebasedPayments" xlink:to="lab_ifrs-full_AdjustmentsForSharebasedPayments" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForDecreaseIncreaseInDerivativeFinancialAssets" xlink:label="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInDerivativeFinancialAssets" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInDerivativeFinancialAssets" xml:lang="en-US">Adjustments for decrease (increase) in derivative financial assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInDerivativeFinancialAssets" xml:lang="en-US">Change in fair value of derivative financial assets</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInDerivativeFinancialAssets" xlink:to="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInDerivativeFinancialAssets" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForIncreaseDecreaseInEmployeeBenefitLiabilities" xlink:label="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInEmployeeBenefitLiabilities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInEmployeeBenefitLiabilities" xml:lang="en-US">Adjustments for increase (decrease) in employee benefit liabilities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInEmployeeBenefitLiabilities" xml:lang="en-US">Change in fair value of liability related to deferred stock&#160;unit&#160;plan</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/definitionGuidance" xlink:label="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInEmployeeBenefitLiabilities" xml:lang="en-US">Change in fair value</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInEmployeeBenefitLiabilities" xlink:to="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInEmployeeBenefitLiabilities" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital" xlink:label="loc_ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital" xml:lang="en-US">Cash flows from (used in) operations before changes in working capital</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital" xml:lang="en-US">Cash flows from (used in) operations before changes in working capital</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital" xlink:to="lab_ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForInterestIncome" xlink:label="loc_ifrs-full_AdjustmentsForInterestIncome" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_AdjustmentsForInterestIncome" xml:lang="en-US">Adjustments for interest income</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_ifrs-full_AdjustmentsForInterestIncome" xml:lang="en-US">Interest income</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForInterestIncome" xlink:to="lab_ifrs-full_AdjustmentsForInterestIncome" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_AdjustmentsForAmortizationOfRightofuseAssets" xlink:label="loc_thtx_AdjustmentsForAmortizationOfRightofuseAssets" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_AdjustmentsForAmortizationOfRightofuseAssets" xml:lang="en-US">Adjustments For Amortization of rightofuse assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_AdjustmentsForAmortizationOfRightofuseAssets" xml:lang="en-US">Amortization of right-of-use assets</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_AdjustmentsForAmortizationOfRightofuseAssets" xlink:to="lab_thtx_AdjustmentsForAmortizationOfRightofuseAssets" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_AdjustmentsForAmortizationOfRightofuseAssets" xml:lang="en-US">Adjustments For Amortization of right-of-use assets.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_AdjustmentsForAccretionExpenseWriteOffAmortizationOfDeferredFinancingCostsAndOther" xlink:label="loc_thtx_AdjustmentsForAccretionExpenseWriteOffAmortizationOfDeferredFinancingCostsAndOther" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_AdjustmentsForAccretionExpenseWriteOffAmortizationOfDeferredFinancingCostsAndOther" xml:lang="en-US">Adjustments For Accretion Expense Write Off Amortization Of Deferred Financing Costs And Other</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_AdjustmentsForAccretionExpenseWriteOffAmortizationOfDeferredFinancingCostsAndOther" xml:lang="en-US">Accretion expense, write-off, amortization of deferred financing costs and other</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_AdjustmentsForAccretionExpenseWriteOffAmortizationOfDeferredFinancingCostsAndOther" xlink:to="lab_thtx_AdjustmentsForAccretionExpenseWriteOffAmortizationOfDeferredFinancingCostsAndOther" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_AdjustmentsForAccretionExpenseWriteOffAmortizationOfDeferredFinancingCostsAndOther" xml:lang="en-US">Adjustments for accretion expense write off amortization of deferred financing costs and other.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GainsOnChangeInFairValueOfDerivatives" xlink:label="loc_ifrs-full_GainsOnChangeInFairValueOfDerivatives" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_GainsOnChangeInFairValueOfDerivatives" xml:lang="en-US">Gains on change in fair value of derivatives</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_ifrs-full_GainsOnChangeInFairValueOfDerivatives" xml:lang="en-US">Change in fair value of Marathon Warrants</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GainsOnChangeInFairValueOfDerivatives" xlink:to="lab_ifrs-full_GainsOnChangeInFairValueOfDerivatives" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForUnrealisedForeignExchangeLossesGains" xlink:label="loc_ifrs-full_AdjustmentsForUnrealisedForeignExchangeLossesGains" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_AdjustmentsForUnrealisedForeignExchangeLossesGains" xml:lang="en-US">Adjustments for unrealised foreign exchange losses (gains)</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_AdjustmentsForUnrealisedForeignExchangeLossesGains" xml:lang="en-US">Foreign exchange</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForUnrealisedForeignExchangeLossesGains" xlink:to="lab_ifrs-full_AdjustmentsForUnrealisedForeignExchangeLossesGains" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_LossOnLongTermDebtmodificationsandRepayment" xlink:label="loc_thtx_LossOnLongTermDebtmodificationsandRepayment" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_LossOnLongTermDebtmodificationsandRepayment" xml:lang="en-US">Loss On Long Term Debt Modifications And Repayment</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_thtx_LossOnLongTermDebtmodificationsandRepayment" xml:lang="en-US">Loss on long-term debt modifications and repayment</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_LossOnLongTermDebtmodificationsandRepayment" xlink:to="lab_thtx_LossOnLongTermDebtmodificationsandRepayment" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_LossOnLongTermDebtmodificationsandRepayment" xml:lang="en-US">Loss on long term debt&#160;modifications&#160;and repayment.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_FederalInvestmentTaxCredits" xlink:label="loc_thtx_FederalInvestmentTaxCredits" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_FederalInvestmentTaxCredits" xml:lang="en-US">Federal Investment Tax Credits</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_thtx_FederalInvestmentTaxCredits" xml:lang="en-US">Federal investment tax credits</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_FederalInvestmentTaxCredits" xlink:to="lab_thtx_FederalInvestmentTaxCredits" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_FederalInvestmentTaxCredits" xml:lang="en-US">Federal investment tax credits.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_InterestOnConvertibleUnsecuredSeniorNotesAndLongTermDebt" xlink:label="loc_thtx_InterestOnConvertibleUnsecuredSeniorNotesAndLongTermDebt" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_InterestOnConvertibleUnsecuredSeniorNotesAndLongTermDebt" xml:lang="en-US">Interest On Convertible Unsecured Senior Notes And Long Term Debt</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_InterestOnConvertibleUnsecuredSeniorNotesAndLongTermDebt" xml:lang="en-US">Interest on convertible unsecured senior notes and long-term debt</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_InterestOnConvertibleUnsecuredSeniorNotesAndLongTermDebt" xlink:to="lab_thtx_InterestOnConvertibleUnsecuredSeniorNotesAndLongTermDebt" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_InterestOnConvertibleUnsecuredSeniorNotesAndLongTermDebt" xml:lang="en-US">Interest on convertible unsecured senior notes and long term debt.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ImpairmentLossRecognisedInProfitOrLossIntangibleAssetsOtherThanGoodwill" xlink:label="loc_ifrs-full_ImpairmentLossRecognisedInProfitOrLossIntangibleAssetsOtherThanGoodwill" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ImpairmentLossRecognisedInProfitOrLossIntangibleAssetsOtherThanGoodwill" xml:lang="en-US">Impairment loss recognised in profit or loss, intangible assets other than goodwill</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_ImpairmentLossRecognisedInProfitOrLossIntangibleAssetsOtherThanGoodwill" xml:lang="en-US">Impairment loss on intangible assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_ImpairmentLossRecognisedInProfitOrLossIntangibleAssetsOtherThanGoodwill" xml:lang="en-US">Impairment loss</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ImpairmentLossRecognisedInProfitOrLossIntangibleAssetsOtherThanGoodwill" xlink:to="lab_ifrs-full_ImpairmentLossRecognisedInProfitOrLossIntangibleAssetsOtherThanGoodwill" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_GainLossOnLeaseTermination" xlink:label="loc_thtx_GainLossOnLeaseTermination" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_GainLossOnLeaseTermination" xml:lang="en-US">Gain Loss On Lease Termination</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_thtx_GainLossOnLeaseTermination" xml:lang="en-US">Gain on lease termination</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_GainLossOnLeaseTermination" xml:lang="en-US">Gain on lease termination</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_GainLossOnLeaseTermination" xlink:to="lab_thtx_GainLossOnLeaseTermination" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_GainLossOnLeaseTermination" xml:lang="en-US">Gain loss on lease termination.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InterestReceivedClassifiedAsOperatingActivities" xlink:label="loc_ifrs-full_InterestReceivedClassifiedAsOperatingActivities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_InterestReceivedClassifiedAsOperatingActivities" xml:lang="en-US">Interest received, classified as operating activities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_InterestReceivedClassifiedAsOperatingActivities" xml:lang="en-US">Interest received</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InterestReceivedClassifiedAsOperatingActivities" xlink:to="lab_ifrs-full_InterestReceivedClassifiedAsOperatingActivities" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InterestPaidClassifiedAsOperatingActivities" xlink:label="loc_ifrs-full_InterestPaidClassifiedAsOperatingActivities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_InterestPaidClassifiedAsOperatingActivities" xml:lang="en-US">Interest paid, classified as operating activities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_ifrs-full_InterestPaidClassifiedAsOperatingActivities" xml:lang="en-US">Interest paid on convertible unsecured senior notes and long-term debt</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InterestPaidClassifiedAsOperatingActivities" xlink:to="lab_ifrs-full_InterestPaidClassifiedAsOperatingActivities" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncomeTaxesPaidClassifiedAsOperatingActivities" xlink:label="loc_ifrs-full_IncomeTaxesPaidClassifiedAsOperatingActivities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_IncomeTaxesPaidClassifiedAsOperatingActivities" xml:lang="en-US">Income taxes paid, classified as operating activities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_ifrs-full_IncomeTaxesPaidClassifiedAsOperatingActivities" xml:lang="en-US">Income taxes paid</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncomeTaxesPaidClassifiedAsOperatingActivities" xlink:to="lab_ifrs-full_IncomeTaxesPaidClassifiedAsOperatingActivities" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForIncomeTaxExpense" xlink:label="loc_ifrs-full_AdjustmentsForIncomeTaxExpense" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_AdjustmentsForIncomeTaxExpense" xml:lang="en-US">Adjustments for income tax expense</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_AdjustmentsForIncomeTaxExpense" xml:lang="en-US">Income tax expense</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForIncomeTaxExpense" xlink:to="lab_ifrs-full_AdjustmentsForIncomeTaxExpense" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_GainOnRepurchaseOfConvertibleUnsecuredSeniorNotes" xlink:label="loc_thtx_GainOnRepurchaseOfConvertibleUnsecuredSeniorNotes" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_GainOnRepurchaseOfConvertibleUnsecuredSeniorNotes" xml:lang="en-US">Gain On Repurchase Of Convertible Unsecured Senior Notes</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_thtx_GainOnRepurchaseOfConvertibleUnsecuredSeniorNotes" xml:lang="en-US">Gain on repurchase of convertible unsecured senior notes</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_GainOnRepurchaseOfConvertibleUnsecuredSeniorNotes" xml:lang="en-US">Gain on repurchase of convertible unsecured senior notes</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:label="lab_thtx_GainOnRepurchaseOfConvertibleUnsecuredSeniorNotes" xml:lang="en-US">Gain on repurchase</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_GainOnRepurchaseOfConvertibleUnsecuredSeniorNotes" xlink:to="lab_thtx_GainOnRepurchaseOfConvertibleUnsecuredSeniorNotes" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_GainOnRepurchaseOfConvertibleUnsecuredSeniorNotes" xml:lang="en-US">Gain on repurchase of convertible unsecured senior notes.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:label="loc_ifrs-full_CashFlowsFromUsedInOperatingActivities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_CashFlowsFromUsedInOperatingActivities" xml:lang="en-US">Cash flows from (used in) operating activities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_ifrs-full_CashFlowsFromUsedInOperatingActivities" xml:lang="en-US">Total cash from (used) in operating activities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_CashFlowsFromUsedInOperatingActivities" xml:lang="en-US">Negative operating cash flows</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:to="lab_ifrs-full_CashFlowsFromUsedInOperatingActivities" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_ChangeInOperatingAssetsAndLiabilitiesAbstract" xlink:label="loc_thtx_ChangeInOperatingAssetsAndLiabilitiesAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_ChangeInOperatingAssetsAndLiabilitiesAbstract" xml:lang="en-US">Change In Operating Assets And Liabilities [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_ChangeInOperatingAssetsAndLiabilitiesAbstract" xml:lang="en-US">Change in operating assets and liabilities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_ChangeInOperatingAssetsAndLiabilitiesAbstract" xlink:to="lab_thtx_ChangeInOperatingAssetsAndLiabilitiesAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_ChangeInOperatingAssetsAndLiabilitiesAbstract" xml:lang="en-US">Change in operating assets and liabilities.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables" xlink:label="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables" xml:lang="en-US">Adjustments for decrease (increase) in trade and other receivables</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables" xml:lang="en-US">Trade and other receivables</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables" xlink:to="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForDecreaseIncreaseInInventories" xlink:label="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInInventories" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInInventories" xml:lang="en-US">Adjustments for decrease (increase) in inventories</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInInventories" xml:lang="en-US">Inventories</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInInventories" xlink:to="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInInventories" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForDecreaseIncreaseInOtherCurrentAssets" xlink:label="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInOtherCurrentAssets" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInOtherCurrentAssets" xml:lang="en-US">Adjustments for decrease (increase) in other current assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInOtherCurrentAssets" xml:lang="en-US">Prepaid expenses and deposits</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInOtherCurrentAssets" xlink:to="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInOtherCurrentAssets" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables" xlink:label="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables" xml:lang="en-US">Adjustments for increase (decrease) in trade and other payables</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables" xml:lang="en-US">Accounts payable and accrued liabilities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables" xlink:to="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForProvisions" xlink:label="loc_ifrs-full_AdjustmentsForProvisions" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_AdjustmentsForProvisions" xml:lang="en-US">Adjustments for provisions</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_AdjustmentsForProvisions" xml:lang="en-US">Provisions</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForProvisions" xlink:to="lab_ifrs-full_AdjustmentsForProvisions" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseInWorkingCapital" xlink:label="loc_ifrs-full_IncreaseDecreaseInWorkingCapital" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_IncreaseDecreaseInWorkingCapital" xml:lang="en-US">Increase (decrease) in working capital</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:label="lab_ifrs-full_IncreaseDecreaseInWorkingCapital" xml:lang="en-US">Increase (decrease) in working capital</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseInWorkingCapital" xlink:to="lab_ifrs-full_IncreaseDecreaseInWorkingCapital" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForIncreaseDecreaseInDeferredIncomeOtherThanContractLiabilities" xlink:label="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInDeferredIncomeOtherThanContractLiabilities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInDeferredIncomeOtherThanContractLiabilities" xml:lang="en-US">Adjustments for increase (decrease) in deferred income other than contract liabilities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInDeferredIncomeOtherThanContractLiabilities" xml:lang="en-US">Deferred revenue</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInDeferredIncomeOtherThanContractLiabilities" xlink:to="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInDeferredIncomeOtherThanContractLiabilities" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_AdjustmentsForTaxCreditsReceivable" xlink:label="loc_thtx_AdjustmentsForTaxCreditsReceivable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_AdjustmentsForTaxCreditsReceivable" xml:lang="en-US">Adjustments For Tax Credits Receivable</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_AdjustmentsForTaxCreditsReceivable" xml:lang="en-US">Tax credits receivable</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_AdjustmentsForTaxCreditsReceivable" xlink:to="lab_thtx_AdjustmentsForTaxCreditsReceivable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_AdjustmentsForTaxCreditsReceivable" xml:lang="en-US">Adjustments for tax credits receivable.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract" xlink:label="loc_ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract" xml:lang="en-US">Cash flows from (used in) financing activities [abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract" xml:lang="en-US">Financing activities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract" xlink:to="lab_ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProceedsFromExerciseOfOptions" xlink:label="loc_ifrs-full_ProceedsFromExerciseOfOptions" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ProceedsFromExerciseOfOptions" xml:lang="en-US">Proceeds from exercise of options</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_ProceedsFromExerciseOfOptions" xml:lang="en-US">Proceeds from exercise of Options</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProceedsFromExerciseOfOptions" xlink:to="lab_ifrs-full_ProceedsFromExerciseOfOptions" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInFinancingActivities" xlink:label="loc_ifrs-full_CashFlowsFromUsedInFinancingActivities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_CashFlowsFromUsedInFinancingActivities" xml:lang="en-US">Cash flows from (used in) financing activities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_ifrs-full_CashFlowsFromUsedInFinancingActivities" xml:lang="en-US">Total cash (used in) from financing activities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashFlowsFromUsedInFinancingActivities" xlink:to="lab_ifrs-full_CashFlowsFromUsedInFinancingActivities" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities" xlink:label="loc_ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities" xml:lang="en-US">Payments of lease liabilities, classified as financing activities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities" xml:lang="en-US">Payment of lease liability</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities" xlink:to="lab_ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_AdjustmentsForDeferredFinancingCosts" xlink:label="loc_thtx_AdjustmentsForDeferredFinancingCosts" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_AdjustmentsForDeferredFinancingCosts" xml:lang="en-US">Adjustments For Deferred Financing Costs</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_AdjustmentsForDeferredFinancingCosts" xml:lang="en-US">Deferred financing costs</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_AdjustmentsForDeferredFinancingCosts" xlink:to="lab_thtx_AdjustmentsForDeferredFinancingCosts" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_AdjustmentsForDeferredFinancingCosts" xml:lang="en-US">Adjustments for deferred financing costs.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_ProceedsFromIssuingSharesAndWarrants" xlink:label="loc_thtx_ProceedsFromIssuingSharesAndWarrants" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_ProceedsFromIssuingSharesAndWarrants" xml:lang="en-US">Proceeds From Issuing Shares And Warrants</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_ProceedsFromIssuingSharesAndWarrants" xml:lang="en-US">Proceeds from issue of common shares, Public Offering Warrants and subscription receipts</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_ProceedsFromIssuingSharesAndWarrants" xlink:to="lab_thtx_ProceedsFromIssuingSharesAndWarrants" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_ProceedsFromIssuingSharesAndWarrants" xml:lang="en-US">Proceeds from issuing shares and warrants.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PaymentsForShareIssueCosts" xlink:label="loc_ifrs-full_PaymentsForShareIssueCosts" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_PaymentsForShareIssueCosts" xml:lang="en-US">Payments for share issue costs</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_ifrs-full_PaymentsForShareIssueCosts" xml:lang="en-US">Costs related to issuance of common shares, Public Offering Warrants and subscription receipts</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_PaymentsForShareIssueCosts" xml:lang="en-US">Payments for share issue costs</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PaymentsForShareIssueCosts" xlink:to="lab_ifrs-full_PaymentsForShareIssueCosts" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_RepaymentsForDebtIssueCosts" xlink:label="loc_thtx_RepaymentsForDebtIssueCosts" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_RepaymentsForDebtIssueCosts" xml:lang="en-US">Repayments For Debt Issue Costs</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_thtx_RepaymentsForDebtIssueCosts" xml:lang="en-US">Costs related to repayment of long-term debt</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_RepaymentsForDebtIssueCosts" xlink:to="lab_thtx_RepaymentsForDebtIssueCosts" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_RepaymentsForDebtIssueCosts" xml:lang="en-US">Repayments for debt issue costs.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RepaymentsOfNoncurrentBorrowings" xlink:label="loc_ifrs-full_RepaymentsOfNoncurrentBorrowings" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_RepaymentsOfNoncurrentBorrowings" xml:lang="en-US">Repayments of non-current borrowings</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_ifrs-full_RepaymentsOfNoncurrentBorrowings" xml:lang="en-US">Repayment of long-term debt</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RepaymentsOfNoncurrentBorrowings" xlink:to="lab_ifrs-full_RepaymentsOfNoncurrentBorrowings" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RepaymentsOfBondsNotesAndDebentures" xlink:label="loc_ifrs-full_RepaymentsOfBondsNotesAndDebentures" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_RepaymentsOfBondsNotesAndDebentures" xml:lang="en-US">Repayments of bonds, notes and debentures</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_ifrs-full_RepaymentsOfBondsNotesAndDebentures" xml:lang="en-US">Repurchase of convertible unsecured senior notes</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:label="lab_ifrs-full_RepaymentsOfBondsNotesAndDebentures" xml:lang="en-US">Cash paid on repurchase</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RepaymentsOfBondsNotesAndDebentures" xlink:to="lab_ifrs-full_RepaymentsOfBondsNotesAndDebentures" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_PaymentsForCostsRelatedToRepurchaseOfConvertibleUnsecuredSeniorNotes" xlink:label="loc_thtx_PaymentsForCostsRelatedToRepurchaseOfConvertibleUnsecuredSeniorNotes" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_PaymentsForCostsRelatedToRepurchaseOfConvertibleUnsecuredSeniorNotes" xml:lang="en-US">Payments For Costs Related To Repurchase Of Convertible Unsecured Senior Notes</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_thtx_PaymentsForCostsRelatedToRepurchaseOfConvertibleUnsecuredSeniorNotes" xml:lang="en-US">Costs related to repurchase of convertible unsecured senior notes</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:label="lab_thtx_PaymentsForCostsRelatedToRepurchaseOfConvertibleUnsecuredSeniorNotes" xml:lang="en-US">Transaction costs incurred</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_PaymentsForCostsRelatedToRepurchaseOfConvertibleUnsecuredSeniorNotes" xlink:to="lab_thtx_PaymentsForCostsRelatedToRepurchaseOfConvertibleUnsecuredSeniorNotes" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_PaymentsForCostsRelatedToRepurchaseOfConvertibleUnsecuredSeniorNotes" xml:lang="en-US">Payments for costs related to repurchase of convertible unsecured senior notes.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProceedsFromNoncurrentBorrowings" xlink:label="loc_ifrs-full_ProceedsFromNoncurrentBorrowings" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ProceedsFromNoncurrentBorrowings" xml:lang="en-US">Proceeds from non-current borrowings</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/definitionGuidance" xlink:label="lab_ifrs-full_ProceedsFromNoncurrentBorrowings" xml:lang="en-US">Proceeds from issuance of long-term debt</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_ProceedsFromNoncurrentBorrowings" xml:lang="en-US">Proceeds from issuance of long-term loan</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProceedsFromNoncurrentBorrowings" xlink:to="lab_ifrs-full_ProceedsFromNoncurrentBorrowings" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PaymentsForDebtIssueCosts" xlink:label="loc_ifrs-full_PaymentsForDebtIssueCosts" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_PaymentsForDebtIssueCosts" xml:lang="en-US">Payments for debt issue costs</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_ifrs-full_PaymentsForDebtIssueCosts" xml:lang="en-US">Costs related to issuance of long-term debt</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PaymentsForDebtIssueCosts" xlink:to="lab_ifrs-full_PaymentsForDebtIssueCosts" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract" xlink:label="loc_ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract" xml:lang="en-US">Cash flows from (used in) investing activities [abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract" xml:lang="en-US">Investing activities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract" xlink:to="lab_ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities" xlink:label="loc_ifrs-full_PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities" xml:lang="en-US">Purchase of intangible assets, classified as investing activities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_ifrs-full_PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities" xml:lang="en-US">Acquisition of intangible assets</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities" xlink:to="lab_ifrs-full_PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xlink:label="loc_ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xml:lang="en-US">Purchase of property, plant and equipment, classified as investing activities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xml:lang="en-US">Acquisition of property and equipment</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xlink:to="lab_ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProceedsFromSalesOrMaturityOfFinancialInstrumentsClassifiedAsInvestingActivities" xlink:label="loc_ifrs-full_ProceedsFromSalesOrMaturityOfFinancialInstrumentsClassifiedAsInvestingActivities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ProceedsFromSalesOrMaturityOfFinancialInstrumentsClassifiedAsInvestingActivities" xml:lang="en-US">Proceeds from sales or maturity of financial instruments, classified as investing activities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_ProceedsFromSalesOrMaturityOfFinancialInstrumentsClassifiedAsInvestingActivities" xml:lang="en-US">Proceeds from sale of bonds and money market funds</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProceedsFromSalesOrMaturityOfFinancialInstrumentsClassifiedAsInvestingActivities" xlink:to="lab_ifrs-full_ProceedsFromSalesOrMaturityOfFinancialInstrumentsClassifiedAsInvestingActivities" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PurchaseOfFinancialInstrumentsClassifiedAsInvestingActivities" xlink:label="loc_ifrs-full_PurchaseOfFinancialInstrumentsClassifiedAsInvestingActivities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_PurchaseOfFinancialInstrumentsClassifiedAsInvestingActivities" xml:lang="en-US">Purchase of financial instruments, classified as investing activities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_ifrs-full_PurchaseOfFinancialInstrumentsClassifiedAsInvestingActivities" xml:lang="en-US">Acquisition of bonds and money market funds</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PurchaseOfFinancialInstrumentsClassifiedAsInvestingActivities" xlink:to="lab_ifrs-full_PurchaseOfFinancialInstrumentsClassifiedAsInvestingActivities" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:label="loc_ifrs-full_CashFlowsFromUsedInInvestingActivities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_CashFlowsFromUsedInInvestingActivities" xml:lang="en-US">Cash flows from (used in) investing activities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_ifrs-full_CashFlowsFromUsedInInvestingActivities" xml:lang="en-US">Total cash from investing activities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:to="lab_ifrs-full_CashFlowsFromUsedInInvestingActivities" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsInvestingActivities" xlink:label="loc_ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsInvestingActivities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsInvestingActivities" xml:lang="en-US">Other inflows (outflows) of cash, classified as investing activities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsInvestingActivities" xml:lang="en-US">Other</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsInvestingActivities" xlink:to="lab_ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsInvestingActivities" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges" xlink:label="loc_ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges" xml:lang="en-US">Increase (decrease) in cash and cash equivalents before effect of exchange rate changes</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges" xml:lang="en-US">Net change in cash</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges" xlink:to="lab_ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashAndCashEquivalents" xlink:label="loc_ifrs-full_CashAndCashEquivalents" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_CashAndCashEquivalents" xml:lang="en-US">Cash and cash equivalents</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_ifrs-full_CashAndCashEquivalents" xml:lang="en-US">Cash, beginning of year</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_ifrs-full_CashAndCashEquivalents" xml:lang="en-US">Cash and cash equivalent held in escrow, end of year</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashAndCashEquivalents" xlink:to="lab_ifrs-full_CashAndCashEquivalents" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EffectOfExchangeRateChangesOnCashAndCashEquivalents" xlink:label="loc_ifrs-full_EffectOfExchangeRateChangesOnCashAndCashEquivalents" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_EffectOfExchangeRateChangesOnCashAndCashEquivalents" xml:lang="en-US">Effect of exchange rate changes on cash and cash equivalents</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_EffectOfExchangeRateChangesOnCashAndCashEquivalents" xml:lang="en-US">Effect of foreign exchange on cash</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_EffectOfExchangeRateChangesOnCashAndCashEquivalents" xlink:to="lab_ifrs-full_EffectOfExchangeRateChangesOnCashAndCashEquivalents" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_TextsBlockAbstract" xlink:label="loc_thtx_TextsBlockAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_TextsBlockAbstract" xml:lang="en-US">Texts Block [Abstract]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_TextsBlockAbstract" xlink:to="lab_thtx_TextsBlockAbstract" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory" xml:lang="en-US">Disclosure of basis of preparation of financial statements [text block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory" xml:lang="en-US">Basis of preparation</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfMaterialAccountingPolicyInformationExplanatory" xlink:label="loc_ifrs-full_DisclosureOfMaterialAccountingPolicyInformationExplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfMaterialAccountingPolicyInformationExplanatory" xml:lang="en-US">Disclosure of material accounting policy information [text block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DisclosureOfMaterialAccountingPolicyInformationExplanatory" xml:lang="en-US">Material accounting policies</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfMaterialAccountingPolicyInformationExplanatory" xlink:to="lab_ifrs-full_DisclosureOfMaterialAccountingPolicyInformationExplanatory" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfRevenueExplanatory" xlink:label="loc_ifrs-full_DisclosureOfRevenueExplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfRevenueExplanatory" xml:lang="en-US">Disclosure of revenue [text block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DisclosureOfRevenueExplanatory" xml:lang="en-US">Revenue</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfRevenueExplanatory" xlink:to="lab_ifrs-full_DisclosureOfRevenueExplanatory" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfEmployeeBenefitsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfEmployeeBenefitsExplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfEmployeeBenefitsExplanatory" xml:lang="en-US">Disclosure of employee benefits [text block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DisclosureOfEmployeeBenefitsExplanatory" xml:lang="en-US">Personnel expenses</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfEmployeeBenefitsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfEmployeeBenefitsExplanatory" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFinanceIncomeExpenseExplanatory" xlink:label="loc_ifrs-full_DisclosureOfFinanceIncomeExpenseExplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfFinanceIncomeExpenseExplanatory" xml:lang="en-US">Disclosure of finance income (cost) [text block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DisclosureOfFinanceIncomeExpenseExplanatory" xml:lang="en-US">Finance income and finance costs</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFinanceIncomeExpenseExplanatory" xlink:to="lab_ifrs-full_DisclosureOfFinanceIncomeExpenseExplanatory" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_ScheduleOfDetailedInformationAboutBondsAndMoneyMarketFundsAbstract" xlink:label="loc_thtx_ScheduleOfDetailedInformationAboutBondsAndMoneyMarketFundsAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_ScheduleOfDetailedInformationAboutBondsAndMoneyMarketFundsAbstract" xml:lang="en-US">Schedule Of Detailed Information About Bonds And Money Market Funds [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_ScheduleOfDetailedInformationAboutBondsAndMoneyMarketFundsAbstract" xml:lang="en-US">Schedule of Detailed Information About Bonds and Money Market Funds</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_ScheduleOfDetailedInformationAboutBondsAndMoneyMarketFundsAbstract" xlink:to="lab_thtx_ScheduleOfDetailedInformationAboutBondsAndMoneyMarketFundsAbstract" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFinancialAssetsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfFinancialAssetsExplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfFinancialAssetsExplanatory" xml:lang="en-US">Disclosure of financial assets [text block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DisclosureOfFinancialAssetsExplanatory" xml:lang="en-US">Bonds and money market funds</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFinancialAssetsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfFinancialAssetsExplanatory" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_TradeAndOtherReceivablesExplanatoryAbstract" xlink:label="loc_thtx_TradeAndOtherReceivablesExplanatoryAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_TradeAndOtherReceivablesExplanatoryAbstract" xml:lang="en-US">Trade And Other Receivables Explanatory [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_TradeAndOtherReceivablesExplanatoryAbstract" xml:lang="en-US">Trade And Other Receivables Explanatory [Abstract]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_TradeAndOtherReceivablesExplanatoryAbstract" xlink:to="lab_thtx_TradeAndOtherReceivablesExplanatoryAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_TradeAndOtherReceivablesExplanatoryAbstract" xml:lang="en-US">Trade and other receivables explanatory.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfTradeAndOtherReceivablesExplanatory" xlink:label="loc_ifrs-full_DisclosureOfTradeAndOtherReceivablesExplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfTradeAndOtherReceivablesExplanatory" xml:lang="en-US">Disclosure of trade and other receivables [text block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DisclosureOfTradeAndOtherReceivablesExplanatory" xml:lang="en-US">Trade and other receivables</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfTradeAndOtherReceivablesExplanatory" xlink:to="lab_ifrs-full_DisclosureOfTradeAndOtherReceivablesExplanatory" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_ScheduleOfInformationAboutUnusedAndUnrecordedNonRefundableFederalTaxCreditAbstract" xlink:label="loc_thtx_ScheduleOfInformationAboutUnusedAndUnrecordedNonRefundableFederalTaxCreditAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_ScheduleOfInformationAboutUnusedAndUnrecordedNonRefundableFederalTaxCreditAbstract" xml:lang="en-US">Schedule Of Information About Unused And Unrecorded Non Refundable Federal Tax Credit [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_ScheduleOfInformationAboutUnusedAndUnrecordedNonRefundableFederalTaxCreditAbstract" xml:lang="en-US">Schedule Of Information About Unused And Unrecorded Non Refundable Federal Tax Credit [Abstract]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_ScheduleOfInformationAboutUnusedAndUnrecordedNonRefundableFederalTaxCreditAbstract" xlink:to="lab_thtx_ScheduleOfInformationAboutUnusedAndUnrecordedNonRefundableFederalTaxCreditAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_ScheduleOfInformationAboutUnusedAndUnrecordedNonRefundableFederalTaxCreditAbstract" xml:lang="en-US">Schedule Of Information About Unused And Unrecorded Non Refundable Federal Tax Credit.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DisclosureOfTaxCreditsReceivableExplanatory" xlink:label="loc_thtx_DisclosureOfTaxCreditsReceivableExplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DisclosureOfTaxCreditsReceivableExplanatory" xml:lang="en-US">Disclosure Of Tax Credits Receivable Explanatory</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_DisclosureOfTaxCreditsReceivableExplanatory" xml:lang="en-US">Tax credits and grants receivable</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DisclosureOfTaxCreditsReceivableExplanatory" xlink:to="lab_thtx_DisclosureOfTaxCreditsReceivableExplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DisclosureOfTaxCreditsReceivableExplanatory" xml:lang="en-US">Disclosure of tax credits receivable explanatory.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfInventoriesAbstract" xlink:label="loc_ifrs-full_ClassesOfInventoriesAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ClassesOfInventoriesAbstract" xml:lang="en-US">Classes of current inventories [abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_ClassesOfInventoriesAbstract" xml:lang="en-US">Classes of current inventories [abstract]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfInventoriesAbstract" xlink:to="lab_ifrs-full_ClassesOfInventoriesAbstract" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfInventoriesExplanatory" xlink:label="loc_ifrs-full_DisclosureOfInventoriesExplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfInventoriesExplanatory" xml:lang="en-US">Disclosure of inventories [text block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DisclosureOfInventoriesExplanatory" xml:lang="en-US">Inventories</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfInventoriesExplanatory" xlink:to="lab_ifrs-full_DisclosureOfInventoriesExplanatory" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentPrepaymentsAbstract" xlink:label="loc_ifrs-full_CurrentPrepaymentsAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_CurrentPrepaymentsAbstract" xml:lang="en-US">Current prepayments [abstract]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentPrepaymentsAbstract" xlink:to="lab_ifrs-full_CurrentPrepaymentsAbstract" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DisclosureDetailsOfCurrentPrepaidExpensesAndDeposits" xlink:label="loc_thtx_DisclosureDetailsOfCurrentPrepaidExpensesAndDeposits" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DisclosureDetailsOfCurrentPrepaidExpensesAndDeposits" xml:lang="en-US">Disclosure Details Of Current Prepaid Expenses And Deposits</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_DisclosureDetailsOfCurrentPrepaidExpensesAndDeposits" xml:lang="en-US">Prepaid expenses and deposits</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DisclosureDetailsOfCurrentPrepaidExpensesAndDeposits" xlink:to="lab_thtx_DisclosureDetailsOfCurrentPrepaidExpensesAndDeposits" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DisclosureDetailsOfCurrentPrepaidExpensesAndDeposits" xml:lang="en-US">Disclosure Details Of Current Prepaid Expenses And Deposits</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfPropertyPlantAndEquipmentAbstract" xlink:label="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentAbstract" xml:lang="en-US">Disclosure of detailed information about property, plant and equipment [abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentAbstract" xml:lang="en-US">Disclosure of detailed information about property, plant and equipment [abstract]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentAbstract" xlink:to="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentAbstract" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory" xlink:label="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory" xml:lang="en-US">Disclosure of property, plant and equipment [text block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory" xml:lang="en-US">Property and equipment</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory" xlink:to="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsAbstract" xlink:label="loc_ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsAbstract" xml:lang="en-US">Disclosure of quantitative information about right-of-use assets [abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsAbstract" xml:lang="en-US">Right-of-use assets [abstract]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsAbstract" xlink:to="lab_ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsAbstract" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsExplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsExplanatory" xml:lang="en-US">Disclosure of quantitative information about right-of-use assets [text block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsExplanatory" xml:lang="en-US">Right-of-use assets</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsExplanatory" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfIntangibleAssetsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfIntangibleAssetsExplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfIntangibleAssetsExplanatory" xml:lang="en-US">Disclosure of intangible assets [text block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DisclosureOfIntangibleAssetsExplanatory" xml:lang="en-US">Intangible assets</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfIntangibleAssetsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfIntangibleAssetsExplanatory" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_TradeAndAccruedPayablesAbstract" xlink:label="loc_thtx_TradeAndAccruedPayablesAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_TradeAndAccruedPayablesAbstract" xml:lang="en-US">Trade and Accrued Payables [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_TradeAndAccruedPayablesAbstract" xml:lang="en-US">Trade and other payables (Abstract)</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_TradeAndAccruedPayablesAbstract" xlink:to="lab_thtx_TradeAndAccruedPayablesAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_TradeAndAccruedPayablesAbstract" xml:lang="en-US">Trade and accrued payables.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DisclosureOfTradeAndAccruedPayablesExplanatoryTextBlock" xlink:label="loc_thtx_DisclosureOfTradeAndAccruedPayablesExplanatoryTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DisclosureOfTradeAndAccruedPayablesExplanatoryTextBlock" xml:lang="en-US">Disclosure Of Trade And Accrued Payables Explanatory [Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_DisclosureOfTradeAndAccruedPayablesExplanatoryTextBlock" xml:lang="en-US">Accounts payable and accured liabilities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DisclosureOfTradeAndAccruedPayablesExplanatoryTextBlock" xlink:to="lab_thtx_DisclosureOfTradeAndAccruedPayablesExplanatoryTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DisclosureOfTradeAndAccruedPayablesExplanatoryTextBlock" xml:lang="en-US">Disclosure of trade and accrued payables explanatory.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfOtherProvisionsAbstract" xlink:label="loc_ifrs-full_DisclosureOfOtherProvisionsAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfOtherProvisionsAbstract" xml:lang="en-US">Disclosure of other provisions [abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_DisclosureOfOtherProvisionsAbstract" xml:lang="en-US">Provisions [abstract]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfOtherProvisionsAbstract" xlink:to="lab_ifrs-full_DisclosureOfOtherProvisionsAbstract" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfProvisionsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfProvisionsExplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfProvisionsExplanatory" xml:lang="en-US">Disclosure of provisions [text block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_DisclosureOfProvisionsExplanatory" xml:lang="en-US">Provisions</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfProvisionsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfProvisionsExplanatory" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfBorrowingsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfBorrowingsExplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfBorrowingsExplanatory" xml:lang="en-US">Disclosure of borrowings [text block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_DisclosureOfBorrowingsExplanatory" xml:lang="en-US">Long-term debt</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfBorrowingsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfBorrowingsExplanatory" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_ConvertibleUnsecuredSeniorNotesAbstract" xlink:label="loc_thtx_ConvertibleUnsecuredSeniorNotesAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_ConvertibleUnsecuredSeniorNotesAbstract" xml:lang="en-US">Convertible Unsecured Senior Notes [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_ConvertibleUnsecuredSeniorNotesAbstract" xml:lang="en-US">Convertible senior notes [Abstract]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_ConvertibleUnsecuredSeniorNotesAbstract" xlink:to="lab_thtx_ConvertibleUnsecuredSeniorNotesAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_ConvertibleUnsecuredSeniorNotesAbstract" xml:lang="en-US">Convertible unsecured senior notes.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DisclosureOfConvertibleSeniorNotesExplanatoryTextBlock" xlink:label="loc_thtx_DisclosureOfConvertibleSeniorNotesExplanatoryTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DisclosureOfConvertibleSeniorNotesExplanatoryTextBlock" xml:lang="en-US">Disclosure Of Convertible Senior Notes Explanatory [Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_DisclosureOfConvertibleSeniorNotesExplanatoryTextBlock" xml:lang="en-US">Convertible unsecured senior notes</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DisclosureOfConvertibleSeniorNotesExplanatoryTextBlock" xlink:to="lab_thtx_DisclosureOfConvertibleSeniorNotesExplanatoryTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DisclosureOfConvertibleSeniorNotesExplanatoryTextBlock" xml:lang="en-US">Disclosure of convertible senior notes explanatory.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LeaseLiabilitiesAbstract" xlink:label="loc_ifrs-full_LeaseLiabilitiesAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_LeaseLiabilitiesAbstract" xml:lang="en-US">Lease liabilities [abstract]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LeaseLiabilitiesAbstract" xlink:to="lab_ifrs-full_LeaseLiabilitiesAbstract" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfLeasesExplanatory" xlink:label="loc_ifrs-full_DisclosureOfLeasesExplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfLeasesExplanatory" xml:lang="en-US">Disclosure of leases [text block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DisclosureOfLeasesExplanatory" xml:lang="en-US">Leases liabilities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfLeasesExplanatory" xlink:to="lab_ifrs-full_DisclosureOfLeasesExplanatory" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfClassesOfShareCapitalAbstract" xlink:label="loc_ifrs-full_DisclosureOfClassesOfShareCapitalAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfClassesOfShareCapitalAbstract" xml:lang="en-US">Disclosure of classes of share capital [abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DisclosureOfClassesOfShareCapitalAbstract" xml:lang="en-US">Disclosure of classes of share capital [abstract]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfClassesOfShareCapitalAbstract" xlink:to="lab_ifrs-full_DisclosureOfClassesOfShareCapitalAbstract" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory" xlink:label="loc_ifrs-full_DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory" xml:lang="en-US">Disclosure of share capital, reserves and other equity interest [text block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory" xml:lang="en-US">Share capital warrants and subscription receipts</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory" xlink:to="lab_ifrs-full_DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_MajorComponentsOfTaxExpenseIncomeAbstract" xlink:label="loc_ifrs-full_MajorComponentsOfTaxExpenseIncomeAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_MajorComponentsOfTaxExpenseIncomeAbstract" xml:lang="en-US">Major components of tax expense (income) [abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_MajorComponentsOfTaxExpenseIncomeAbstract" xml:lang="en-US">Major components of tax expense (income) [abstract]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_MajorComponentsOfTaxExpenseIncomeAbstract" xlink:to="lab_ifrs-full_MajorComponentsOfTaxExpenseIncomeAbstract" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfIncomeTaxExplanatory" xlink:label="loc_ifrs-full_DisclosureOfIncomeTaxExplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfIncomeTaxExplanatory" xml:lang="en-US">Disclosure of income tax [text block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DisclosureOfIncomeTaxExplanatory" xml:lang="en-US">Income taxes</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfIncomeTaxExplanatory" xlink:to="lab_ifrs-full_DisclosureOfIncomeTaxExplanatory" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_SupplementalCashFlowDisclosuresAbstract" xlink:label="loc_thtx_SupplementalCashFlowDisclosuresAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_SupplementalCashFlowDisclosuresAbstract" xml:lang="en-US">Supplemental cash flow disclosures [abstract]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_SupplementalCashFlowDisclosuresAbstract" xlink:to="lab_thtx_SupplementalCashFlowDisclosuresAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_SupplementalCashFlowDisclosuresAbstract" xml:lang="en-US">Supplemental Cash Flow Disclosures.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DisclosureOfSupplementalInformationOnCashFlowexplanatory" xlink:label="loc_thtx_DisclosureOfSupplementalInformationOnCashFlowexplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DisclosureOfSupplementalInformationOnCashFlowexplanatory" xml:lang="en-US">Disclosure Of Supplemental Information On Cash Flow Explanatory</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_DisclosureOfSupplementalInformationOnCashFlowexplanatory" xml:lang="en-US">Supplemental cash flow disclosures</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DisclosureOfSupplementalInformationOnCashFlowexplanatory" xlink:to="lab_thtx_DisclosureOfSupplementalInformationOnCashFlowexplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DisclosureOfSupplementalInformationOnCashFlowexplanatory" xml:lang="en-US">Disclosure Of Supplemental Information On Cash Flow [Explanatory]</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFinancialInstrumentsAbstract" xlink:label="loc_ifrs-full_DisclosureOfFinancialInstrumentsAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfFinancialInstrumentsAbstract" xml:lang="en-US">Disclosure of detailed information about financial instruments [abstract]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsAbstract" xlink:to="lab_ifrs-full_DisclosureOfFinancialInstrumentsAbstract" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFinancialInstrumentsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfFinancialInstrumentsExplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfFinancialInstrumentsExplanatory" xml:lang="en-US">Disclosure of financial instruments [text block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DisclosureOfFinancialInstrumentsExplanatory" xml:lang="en-US">Financial instruments</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfFinancialInstrumentsExplanatory" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalAbstract" xlink:label="loc_ifrs-full_DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalAbstract" xml:lang="en-US">Disclosure of objectives, policies and processes for managing capital [abstract]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalAbstract" xlink:to="lab_ifrs-full_DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalAbstract" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalExplanatory" xlink:label="loc_ifrs-full_DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalExplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalExplanatory" xml:lang="en-US">Disclosure of objectives, policies and processes for managing capital [text block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalExplanatory" xml:lang="en-US">Captital management</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalExplanatory" xlink:to="lab_ifrs-full_DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalExplanatory" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DisclosureOfFairValueMeasurementAbstract" xlink:label="loc_thtx_DisclosureOfFairValueMeasurementAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DisclosureOfFairValueMeasurementAbstract" xml:lang="en-US">Disclosure of Fair Value Measurement [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_DisclosureOfFairValueMeasurementAbstract" xml:lang="en-US">Disclosure of fair value measurement [abstract]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DisclosureOfFairValueMeasurementAbstract" xlink:to="lab_thtx_DisclosureOfFairValueMeasurementAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DisclosureOfFairValueMeasurementAbstract" xml:lang="en-US">Disclosure of fair value measurement.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFairValueMeasurementExplanatory" xlink:label="loc_ifrs-full_DisclosureOfFairValueMeasurementExplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfFairValueMeasurementExplanatory" xml:lang="en-US">Disclosure of fair value measurement [text block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DisclosureOfFairValueMeasurementExplanatory" xml:lang="en-US">Determination of fair values</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementExplanatory" xlink:to="lab_ifrs-full_DisclosureOfFairValueMeasurementExplanatory" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DisclosureOfCommitmentsAbstract" xlink:label="loc_thtx_DisclosureOfCommitmentsAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DisclosureOfCommitmentsAbstract" xml:lang="en-US">Disclosure of commitments [abstract]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DisclosureOfCommitmentsAbstract" xlink:to="lab_thtx_DisclosureOfCommitmentsAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DisclosureOfCommitmentsAbstract" xml:lang="en-US">Disclosure of commitments abstract.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfCommitmentsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfCommitmentsExplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfCommitmentsExplanatory" xml:lang="en-US">Disclosure of commitments [text block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DisclosureOfCommitmentsExplanatory" xml:lang="en-US">Commitments</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfCommitmentsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfCommitmentsExplanatory" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfOperatingSegmentsAbstract" xlink:label="loc_ifrs-full_DisclosureOfOperatingSegmentsAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfOperatingSegmentsAbstract" xml:lang="en-US">Disclosure of operating segments [abstract]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfOperatingSegmentsAbstract" xlink:to="lab_ifrs-full_DisclosureOfOperatingSegmentsAbstract" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfEntitysReportableSegmentsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfEntitysReportableSegmentsExplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfEntitysReportableSegmentsExplanatory" xml:lang="en-US">Disclosure of entity's operating segments [text block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DisclosureOfEntitysReportableSegmentsExplanatory" xml:lang="en-US">Operating segments</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfEntitysReportableSegmentsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfEntitysReportableSegmentsExplanatory" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RelatedPartyTransactionsAbstract" xlink:label="loc_ifrs-full_RelatedPartyTransactionsAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_RelatedPartyTransactionsAbstract" xml:lang="en-US">Related party transactions [abstract]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RelatedPartyTransactionsAbstract" xlink:to="lab_ifrs-full_RelatedPartyTransactionsAbstract" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfRelatedPartyExplanatory" xlink:label="loc_ifrs-full_DisclosureOfRelatedPartyExplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfRelatedPartyExplanatory" xml:lang="en-US">Disclosure of related party [text block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DisclosureOfRelatedPartyExplanatory" xml:lang="en-US">Related parties</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfRelatedPartyExplanatory" xlink:to="lab_ifrs-full_DisclosureOfRelatedPartyExplanatory" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodAbstract" xlink:label="loc_ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodAbstract" xml:lang="en-US">Disclosure of non-adjusting events after reporting period [abstract]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodAbstract" xlink:to="lab_ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodAbstract" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodExplanatory" xlink:label="loc_ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodExplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodExplanatory" xml:lang="en-US">Disclosure of non-adjusting events after reporting period [text block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodExplanatory" xml:lang="en-US">Subsequent events</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodExplanatory" xlink:to="lab_ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodExplanatory" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DescriptionOfAccountingPolicyForBasisOfConsolidationExplanatoryPolicyTextBlock" xlink:label="loc_thtx_DescriptionOfAccountingPolicyForBasisOfConsolidationExplanatoryPolicyTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DescriptionOfAccountingPolicyForBasisOfConsolidationExplanatoryPolicyTextBlock" xml:lang="en-US">Description Of Accounting Policy For Basis Of Consolidation Explanatory [Policy Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_DescriptionOfAccountingPolicyForBasisOfConsolidationExplanatoryPolicyTextBlock" xml:lang="en-US">Basis of consolidation</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DescriptionOfAccountingPolicyForBasisOfConsolidationExplanatoryPolicyTextBlock" xlink:to="lab_thtx_DescriptionOfAccountingPolicyForBasisOfConsolidationExplanatoryPolicyTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DescriptionOfAccountingPolicyForBasisOfConsolidationExplanatoryPolicyTextBlock" xml:lang="en-US">Description of accounting policy for basis of consolidation.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory" xml:lang="en-US">Description of accounting policy for foreign currency translation [text block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory" xml:lang="en-US">Foreign currencies</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForRecognitionOfRevenue" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForRecognitionOfRevenue" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForRecognitionOfRevenue" xml:lang="en-US">Description of accounting policy for recognition of revenue [text block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForRecognitionOfRevenue" xml:lang="en-US">Revenue recognition</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyForRecognitionOfRevenue" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyForRecognitionOfRevenue" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfCostOfSalesExplanatory" xlink:label="loc_ifrs-full_DisclosureOfCostOfSalesExplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfCostOfSalesExplanatory" xml:lang="en-US">Disclosure of cost of sales [text block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DisclosureOfCostOfSalesExplanatory" xml:lang="en-US">Cost of sales</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfCostOfSalesExplanatory" xlink:to="lab_ifrs-full_DisclosureOfCostOfSalesExplanatory" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory" xml:lang="en-US">Description of accounting policy for employee benefits [text block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory" xml:lang="en-US">Employee benefits</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForFinanceIncomeAndCostsExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForFinanceIncomeAndCostsExplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForFinanceIncomeAndCostsExplanatory" xml:lang="en-US">Description of accounting policy for finance income and costs [text block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForFinanceIncomeAndCostsExplanatory" xml:lang="en-US">Finance income and finance costs</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyForFinanceIncomeAndCostsExplanatory" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyForFinanceIncomeAndCostsExplanatory" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DescriptionOfAccountingPolicyForInventoriesExplanatoryPolicyTextBlock" xlink:label="loc_thtx_DescriptionOfAccountingPolicyForInventoriesExplanatoryPolicyTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DescriptionOfAccountingPolicyForInventoriesExplanatoryPolicyTextBlock" xml:lang="en-US">Description Of Accounting Policy For Inventories Explanatory [Policy Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_DescriptionOfAccountingPolicyForInventoriesExplanatoryPolicyTextBlock" xml:lang="en-US">Inventories</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DescriptionOfAccountingPolicyForInventoriesExplanatoryPolicyTextBlock" xlink:to="lab_thtx_DescriptionOfAccountingPolicyForInventoriesExplanatoryPolicyTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DescriptionOfAccountingPolicyForInventoriesExplanatoryPolicyTextBlock" xml:lang="en-US">Description of accounting policy for inventories explanatory.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory" xml:lang="en-US">Description of accounting policy for property, plant and equipment [text block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory" xml:lang="en-US">Property and equipment</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsOtherThanGoodwillExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsOtherThanGoodwillExplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsOtherThanGoodwillExplanatory" xml:lang="en-US">Description of accounting policy for intangible assets other than goodwill [text block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsOtherThanGoodwillExplanatory" xml:lang="en-US">Intangible assets</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsOtherThanGoodwillExplanatory" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsOtherThanGoodwillExplanatory" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory" xml:lang="en-US">Description of accounting policy for financial instruments [text block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory" xml:lang="en-US">Financial instruments</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForLeasesExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForLeasesExplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForLeasesExplanatory" xml:lang="en-US">Description of accounting policy for leases [text block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForLeasesExplanatory" xml:lang="en-US">Leases</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyForLeasesExplanatory" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyForLeasesExplanatory" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForProvisionsExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForProvisionsExplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForProvisionsExplanatory" xml:lang="en-US">Description of accounting policy for provisions [text block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForProvisionsExplanatory" xml:lang="en-US">Provisions</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyForProvisionsExplanatory" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyForProvisionsExplanatory" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForIncomeTaxExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForIncomeTaxExplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForIncomeTaxExplanatory" xml:lang="en-US">Description of accounting policy for income tax [text block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForIncomeTaxExplanatory" xml:lang="en-US">Income taxes</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyForIncomeTaxExplanatory" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyForIncomeTaxExplanatory" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory" xml:lang="en-US">Description of accounting policy for share-based payment transactions [text block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory" xml:lang="en-US">Share-based compensation</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForResearchAndDevelopmentExpenseExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForResearchAndDevelopmentExpenseExplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForResearchAndDevelopmentExpenseExplanatory" xml:lang="en-US">Description of accounting policy for research and development expense [text block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForResearchAndDevelopmentExpenseExplanatory" xml:lang="en-US">Research and development tax credits</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyForResearchAndDevelopmentExpenseExplanatory" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyForResearchAndDevelopmentExpenseExplanatory" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForIssuedCapitalExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForIssuedCapitalExplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForIssuedCapitalExplanatory" xml:lang="en-US">Description of accounting policy for issued capital [text block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForIssuedCapitalExplanatory" xml:lang="en-US">Share capital</label>
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<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForEarningsPerShareExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForEarningsPerShareExplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForEarningsPerShareExplanatory" xml:lang="en-US">Description of accounting policy for earnings per share [text block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForEarningsPerShareExplanatory" xml:lang="en-US">Earnings per share</label>
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<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfNonfinancialAssetsExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfNonfinancialAssetsExplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfNonfinancialAssetsExplanatory" xml:lang="en-US">Description of accounting policy for impairment of non-financial assets [text block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfNonfinancialAssetsExplanatory" xml:lang="en-US">Impairment of non-financial assets</label>
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<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DescriptionOfAccountingPolicyForDeferredFinancingCostsExplanatory" xlink:label="loc_thtx_DescriptionOfAccountingPolicyForDeferredFinancingCostsExplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DescriptionOfAccountingPolicyForDeferredFinancingCostsExplanatory" xml:lang="en-US">Description Of Accounting Policy For Deferred Financing Costs Explanatory</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_DescriptionOfAccountingPolicyForDeferredFinancingCostsExplanatory" xml:lang="en-US">Deferred Financing Costs</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DescriptionOfAccountingPolicyForDeferredFinancingCostsExplanatory" xlink:to="lab_thtx_DescriptionOfAccountingPolicyForDeferredFinancingCostsExplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DescriptionOfAccountingPolicyForDeferredFinancingCostsExplanatory" xml:lang="en-US">Description of accounting policy for deferred financing costs explanatory.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DescriptionOfAccountingPolicyForStandardsIssuedButNotYetEffectiveExplanatoryPolicyTextBlock" xlink:label="loc_thtx_DescriptionOfAccountingPolicyForStandardsIssuedButNotYetEffectiveExplanatoryPolicyTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DescriptionOfAccountingPolicyForStandardsIssuedButNotYetEffectiveExplanatoryPolicyTextBlock" xml:lang="en-US">Description Of Accounting Policy For Standards Issued But Not Yet Effective Explanatory Policy [Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_DescriptionOfAccountingPolicyForStandardsIssuedButNotYetEffectiveExplanatoryPolicyTextBlock" xml:lang="en-US">Standards issued but not yet effective</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DescriptionOfAccountingPolicyForStandardsIssuedButNotYetEffectiveExplanatoryPolicyTextBlock" xlink:to="lab_thtx_DescriptionOfAccountingPolicyForStandardsIssuedButNotYetEffectiveExplanatoryPolicyTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DescriptionOfAccountingPolicyForStandardsIssuedButNotYetEffectiveExplanatoryPolicyTextBlock" xml:lang="en-US">Description of accounting policy for standards issued but not yet effective explanatory policy.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DescriptionOfAccountingPolicyForDeferredTransactionCostsExplanatoryPolicyTextBlock" xlink:label="loc_thtx_DescriptionOfAccountingPolicyForDeferredTransactionCostsExplanatoryPolicyTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DescriptionOfAccountingPolicyForDeferredTransactionCostsExplanatoryPolicyTextBlock" xml:lang="en-US">Description Of Accounting Policy For Deferred Transaction costs Explanatory Policy Text Block</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_DescriptionOfAccountingPolicyForDeferredTransactionCostsExplanatoryPolicyTextBlock" xml:lang="en-US">Deferred transaction costs</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DescriptionOfAccountingPolicyForDeferredTransactionCostsExplanatoryPolicyTextBlock" xlink:to="lab_thtx_DescriptionOfAccountingPolicyForDeferredTransactionCostsExplanatoryPolicyTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DescriptionOfAccountingPolicyForDeferredTransactionCostsExplanatoryPolicyTextBlock" xml:lang="en-US">Description of accounting policy for deferred transaction costs explanatory policy text block.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DescriptionOfAccountingPolicyForAssetAcquisiitonsExplanatory" xlink:label="loc_thtx_DescriptionOfAccountingPolicyForAssetAcquisiitonsExplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DescriptionOfAccountingPolicyForAssetAcquisiitonsExplanatory" xml:lang="en-US">Description Of Accounting Policy For Asset Acquisiitons Explanatory</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_DescriptionOfAccountingPolicyForAssetAcquisiitonsExplanatory" xml:lang="en-US">Asset acquisitions</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DescriptionOfAccountingPolicyForAssetAcquisiitonsExplanatory" xlink:to="lab_thtx_DescriptionOfAccountingPolicyForAssetAcquisiitonsExplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DescriptionOfAccountingPolicyForAssetAcquisiitonsExplanatory" xml:lang="en-US">Description of accounting policy for asset acquisiitons explanatory.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DisclosureOfEstimatedUsefulLivesMethodsOfDepreciationTextBlock" xlink:label="loc_thtx_DisclosureOfEstimatedUsefulLivesMethodsOfDepreciationTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DisclosureOfEstimatedUsefulLivesMethodsOfDepreciationTextBlock" xml:lang="en-US">Disclosure Of Estimated Useful Lives Methods Of Depreciation [Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_DisclosureOfEstimatedUsefulLivesMethodsOfDepreciationTextBlock" xml:lang="en-US">Summary of estimated useful lives, methods of depreciation and depreciation rates</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DisclosureOfEstimatedUsefulLivesMethodsOfDepreciationTextBlock" xlink:to="lab_thtx_DisclosureOfEstimatedUsefulLivesMethodsOfDepreciationTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DisclosureOfEstimatedUsefulLivesMethodsOfDepreciationTextBlock" xml:lang="en-US">Disclosure of estimated useful lives methods of depreciation.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersExplanatory" xlink:label="loc_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersExplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersExplanatory" xml:lang="en-US">Disclosure of disaggregation of revenue from contracts with customers [text block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersExplanatory" xml:lang="en-US">Summary of net sales by product</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersExplanatory" xlink:to="lab_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersExplanatory" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DisaggregationOfRevenueByGeographicalAreaTableTextBlock" xlink:label="loc_thtx_DisaggregationOfRevenueByGeographicalAreaTableTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DisaggregationOfRevenueByGeographicalAreaTableTextBlock" xml:lang="en-US">Disaggregation Of Revenue By Geographical Area [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_DisaggregationOfRevenueByGeographicalAreaTableTextBlock" xml:lang="en-US">Summary of revenue by geographical area</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DisaggregationOfRevenueByGeographicalAreaTableTextBlock" xlink:to="lab_thtx_DisaggregationOfRevenueByGeographicalAreaTableTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DisaggregationOfRevenueByGeographicalAreaTableTextBlock" xml:lang="en-US">Disaggregation of revenue by geographical area.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DisclosureOfDetailedInformationAboutPersonnelExpensesExplanatoryTableTextBlock" xlink:label="loc_thtx_DisclosureOfDetailedInformationAboutPersonnelExpensesExplanatoryTableTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DisclosureOfDetailedInformationAboutPersonnelExpensesExplanatoryTableTextBlock" xml:lang="en-US">Disclosure Of Detailed Information About Personnel Expenses Explanatory [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_DisclosureOfDetailedInformationAboutPersonnelExpensesExplanatoryTableTextBlock" xml:lang="en-US">Summary of detailed information about personnel expenses</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DisclosureOfDetailedInformationAboutPersonnelExpensesExplanatoryTableTextBlock" xlink:to="lab_thtx_DisclosureOfDetailedInformationAboutPersonnelExpensesExplanatoryTableTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DisclosureOfDetailedInformationAboutPersonnelExpensesExplanatoryTableTextBlock" xml:lang="en-US">Disclosure of detailed information about personnel expenses.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DisclosureOfDetailedInformationAboutFinanceIncomeAndCostExplanatoryTableTextBlock" xlink:label="loc_thtx_DisclosureOfDetailedInformationAboutFinanceIncomeAndCostExplanatoryTableTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DisclosureOfDetailedInformationAboutFinanceIncomeAndCostExplanatoryTableTextBlock" xml:lang="en-US">Disclosure Of Detailed Information About Finance Income And Cost Explanatory [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_DisclosureOfDetailedInformationAboutFinanceIncomeAndCostExplanatoryTableTextBlock" xml:lang="en-US">Summary of detailed information about finance income and cost</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DisclosureOfDetailedInformationAboutFinanceIncomeAndCostExplanatoryTableTextBlock" xlink:to="lab_thtx_DisclosureOfDetailedInformationAboutFinanceIncomeAndCostExplanatoryTableTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DisclosureOfDetailedInformationAboutFinanceIncomeAndCostExplanatoryTableTextBlock" xml:lang="en-US">Disclosure of detailed information about finance income and cost</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DisclosureOfDetailedInformationAboutBondsAndMoneyMarketFundsExplanatoryTableTextBlock" xlink:label="loc_thtx_DisclosureOfDetailedInformationAboutBondsAndMoneyMarketFundsExplanatoryTableTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DisclosureOfDetailedInformationAboutBondsAndMoneyMarketFundsExplanatoryTableTextBlock" xml:lang="en-US">Disclosure Of Detailed Information About Bonds And Money Market Funds Explanatory [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_DisclosureOfDetailedInformationAboutBondsAndMoneyMarketFundsExplanatoryTableTextBlock" xml:lang="en-US">Detailed Information About Bonds And Money Market Funds</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DisclosureOfDetailedInformationAboutBondsAndMoneyMarketFundsExplanatoryTableTextBlock" xlink:to="lab_thtx_DisclosureOfDetailedInformationAboutBondsAndMoneyMarketFundsExplanatoryTableTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DisclosureOfDetailedInformationAboutBondsAndMoneyMarketFundsExplanatoryTableTextBlock" xml:lang="en-US">Disclosure of detailed information about bonds and money market funds explanatory.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DisclosureOfDetailedInformationAboutTradeAndOtherReceivablesExplanatoryTableTextBlock" xlink:label="loc_thtx_DisclosureOfDetailedInformationAboutTradeAndOtherReceivablesExplanatoryTableTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DisclosureOfDetailedInformationAboutTradeAndOtherReceivablesExplanatoryTableTextBlock" xml:lang="en-US">Disclosure Of Detailed Information About Trade And Other Receivables Explanatory [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_DisclosureOfDetailedInformationAboutTradeAndOtherReceivablesExplanatoryTableTextBlock" xml:lang="en-US">Summary of detailed information about trade and other receivables</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DisclosureOfDetailedInformationAboutTradeAndOtherReceivablesExplanatoryTableTextBlock" xlink:to="lab_thtx_DisclosureOfDetailedInformationAboutTradeAndOtherReceivablesExplanatoryTableTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DisclosureOfDetailedInformationAboutTradeAndOtherReceivablesExplanatoryTableTextBlock" xml:lang="en-US">Disclosure of detailed information about trade and other receivables explanatory.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DisclosureOfDetailedInformationAboutUnusedAndUnrecordedNonRefundableFederalTaxCreditExplanatoryTableTextBlock" xlink:label="loc_thtx_DisclosureOfDetailedInformationAboutUnusedAndUnrecordedNonRefundableFederalTaxCreditExplanatoryTableTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DisclosureOfDetailedInformationAboutUnusedAndUnrecordedNonRefundableFederalTaxCreditExplanatoryTableTextBlock" xml:lang="en-US">Disclosure Of Detailed Information About Unused And Unrecorded Non Refundable Federal Tax Credit Explanatory [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_DisclosureOfDetailedInformationAboutUnusedAndUnrecordedNonRefundableFederalTaxCreditExplanatoryTableTextBlock" xml:lang="en-US">Summary of information about unused and unrecorded non refundable federal tax credit</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DisclosureOfDetailedInformationAboutUnusedAndUnrecordedNonRefundableFederalTaxCreditExplanatoryTableTextBlock" xlink:to="lab_thtx_DisclosureOfDetailedInformationAboutUnusedAndUnrecordedNonRefundableFederalTaxCreditExplanatoryTableTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DisclosureOfDetailedInformationAboutUnusedAndUnrecordedNonRefundableFederalTaxCreditExplanatoryTableTextBlock" xml:lang="en-US">Disclosure of detailed information about unused and unrecorded non refundable federal tax credit explanatory.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DisclosureOfDetailedInformationAboutInventoriesExplanatoryTextTableTextBlock" xlink:label="loc_thtx_DisclosureOfDetailedInformationAboutInventoriesExplanatoryTextTableTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DisclosureOfDetailedInformationAboutInventoriesExplanatoryTextTableTextBlock" xml:lang="en-US">Disclosure Of Detailed Information About Inventories Explanatory Text [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_DisclosureOfDetailedInformationAboutInventoriesExplanatoryTextTableTextBlock" xml:lang="en-US">Summary of detailed information about inventories</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DisclosureOfDetailedInformationAboutInventoriesExplanatoryTextTableTextBlock" xlink:to="lab_thtx_DisclosureOfDetailedInformationAboutInventoriesExplanatoryTextTableTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DisclosureOfDetailedInformationAboutInventoriesExplanatoryTextTableTextBlock" xml:lang="en-US">Disclosure of detailed information about inventories explanatory text.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfPrepaymentsAndOtherAssetsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfPrepaymentsAndOtherAssetsExplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfPrepaymentsAndOtherAssetsExplanatory" xml:lang="en-US">Disclosure of prepayments and other assets [text block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_DisclosureOfPrepaymentsAndOtherAssetsExplanatory" xml:lang="en-US">Summary of prepaid expenses and deposits</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfPrepaymentsAndOtherAssetsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfPrepaymentsAndOtherAssetsExplanatory" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory" xlink:label="loc_ifrs-full_DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory" xml:lang="en-US">Disclosure of detailed information about property, plant and equipment [text block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory" xml:lang="en-US">Summary of information about property and equipment</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory" xlink:to="lab_ifrs-full_DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DisclosureOfRightOfUseAssetAbstract" xlink:label="loc_thtx_DisclosureOfRightOfUseAssetAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DisclosureOfRightOfUseAssetAbstract" xml:lang="en-US">Disclosure of right of use Asset [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_DisclosureOfRightOfUseAssetAbstract" xml:lang="en-US">Right Of use Asset</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DisclosureOfRightOfUseAssetAbstract" xlink:to="lab_thtx_DisclosureOfRightOfUseAssetAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DisclosureOfRightOfUseAssetAbstract" xml:lang="en-US">Disclosure of right Of use Asset.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_RightOfUseAssetsTableTextBlock" xlink:label="loc_thtx_RightOfUseAssetsTableTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_RightOfUseAssetsTableTextBlock" xml:lang="en-US">Right of use Assets [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_RightOfUseAssetsTableTextBlock" xml:lang="en-US">Summary of right-of-use assets</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_RightOfUseAssetsTableTextBlock" xlink:to="lab_thtx_RightOfUseAssetsTableTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_RightOfUseAssetsTableTextBlock" xml:lang="en-US">Right-of-use&#160;assets.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfIntangibleAssetsAbstract" xlink:label="loc_ifrs-full_DisclosureOfIntangibleAssetsAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfIntangibleAssetsAbstract" xml:lang="en-US">Disclosure of detailed information about intangible assets [abstract]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfIntangibleAssetsAbstract" xlink:to="lab_ifrs-full_DisclosureOfIntangibleAssetsAbstract" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfDetailedInformationAboutIntangibleAssetsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfDetailedInformationAboutIntangibleAssetsExplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfDetailedInformationAboutIntangibleAssetsExplanatory" xml:lang="en-US">Disclosure of detailed information about intangible assets [text block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DisclosureOfDetailedInformationAboutIntangibleAssetsExplanatory" xml:lang="en-US">Schedule of Intangible Assets</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutIntangibleAssetsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfDetailedInformationAboutIntangibleAssetsExplanatory" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DisclosureOfDetailedInformationAboutInCommercialMilestonePaymentExplanatoryTextBlock" xlink:label="loc_thtx_DisclosureOfDetailedInformationAboutInCommercialMilestonePaymentExplanatoryTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DisclosureOfDetailedInformationAboutInCommercialMilestonePaymentExplanatoryTextBlock" xml:lang="en-US">Disclosure of Detailed Information About In Commercial Milestone Payment Explanatory [Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_DisclosureOfDetailedInformationAboutInCommercialMilestonePaymentExplanatoryTextBlock" xml:lang="en-US">Schedule of Commercial Milestone Payment</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DisclosureOfDetailedInformationAboutInCommercialMilestonePaymentExplanatoryTextBlock" xlink:to="lab_thtx_DisclosureOfDetailedInformationAboutInCommercialMilestonePaymentExplanatoryTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DisclosureOfDetailedInformationAboutInCommercialMilestonePaymentExplanatoryTextBlock" xml:lang="en-US">Detailed Information About In Commercial Milestone Payment Explanatory</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TradeAndOtherPayablesAbstract" xlink:label="loc_ifrs-full_TradeAndOtherPayablesAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_TradeAndOtherPayablesAbstract" xml:lang="en-US">Trade and other payables [abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_TradeAndOtherPayablesAbstract" xml:lang="en-US">Trade and other payables (Abstract)</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/disclosureGuidance" xlink:label="lab_ifrs-full_TradeAndOtherPayablesAbstract" xml:lang="en-US">Trade and other payables [Abstract]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TradeAndOtherPayablesAbstract" xlink:to="lab_ifrs-full_TradeAndOtherPayablesAbstract" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfTradeAndOtherPayablesExplanatory" xlink:label="loc_ifrs-full_DisclosureOfTradeAndOtherPayablesExplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfTradeAndOtherPayablesExplanatory" xml:lang="en-US">Disclosure of trade and other payables [text block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_DisclosureOfTradeAndOtherPayablesExplanatory" xml:lang="en-US">Accounts payable and accrued liabilities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfTradeAndOtherPayablesExplanatory" xlink:to="lab_ifrs-full_DisclosureOfTradeAndOtherPayablesExplanatory" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DisclosureOfDetailedInformationAboutProvisionsExplanatoryTableTextBlock" xlink:label="loc_thtx_DisclosureOfDetailedInformationAboutProvisionsExplanatoryTableTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DisclosureOfDetailedInformationAboutProvisionsExplanatoryTableTextBlock" xml:lang="en-US">Disclosure Of Detailed Information About Provisions Explanatory [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_DisclosureOfDetailedInformationAboutProvisionsExplanatoryTableTextBlock" xml:lang="en-US">Summary of provision</label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DisclosureOfDetailedInformationAboutProvisionsExplanatoryTableTextBlock" xml:lang="en-US">Disclosure of detailed information about provisions explanatory.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsAbstract" xlink:label="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsAbstract" xml:lang="en-US">Disclosure of detailed information about borrowings [abstract]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsAbstract" xlink:to="lab_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsAbstract" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DisclosureOfDetailedInformationAboutNoncurrentBorrowingsExplanatoryTableTextBlock" xlink:label="loc_thtx_DisclosureOfDetailedInformationAboutNoncurrentBorrowingsExplanatoryTableTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DisclosureOfDetailedInformationAboutNoncurrentBorrowingsExplanatoryTableTextBlock" xml:lang="en-US">Disclosure Of Detailed Information About NonCurrent Borrowings Explanatory [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_DisclosureOfDetailedInformationAboutNoncurrentBorrowingsExplanatoryTableTextBlock" xml:lang="en-US">Disclosure Of Detailed Information About NonCurrent Borrowings Explanatory [Table Text Block]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DisclosureOfDetailedInformationAboutNoncurrentBorrowingsExplanatoryTableTextBlock" xlink:to="lab_thtx_DisclosureOfDetailedInformationAboutNoncurrentBorrowingsExplanatoryTableTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DisclosureOfDetailedInformationAboutNoncurrentBorrowingsExplanatoryTableTextBlock" xml:lang="en-US">Disclosure of detailed information about noncurrent borrowings explanatory</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsExplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsExplanatory" xml:lang="en-US">Disclosure of detailed information about borrowings [text block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsExplanatory" xml:lang="en-US">Summary of movement in the carrying value of the term loan</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsExplanatory" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DisclosureOfDeferredTaxRelatedToEquityComponentOfConvertibleNotesExplanatoryTableTextBlock" xlink:label="loc_thtx_DisclosureOfDeferredTaxRelatedToEquityComponentOfConvertibleNotesExplanatoryTableTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DisclosureOfDeferredTaxRelatedToEquityComponentOfConvertibleNotesExplanatoryTableTextBlock" xml:lang="en-US">Disclosure Of Deferred Tax Related To Equity Component Of Convertible Notes Explanatory [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_DisclosureOfDeferredTaxRelatedToEquityComponentOfConvertibleNotesExplanatoryTableTextBlock" xml:lang="en-US">Summary of deferred tax related to equity component of convertible unsecured senior notes</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DisclosureOfDeferredTaxRelatedToEquityComponentOfConvertibleNotesExplanatoryTableTextBlock" xlink:to="lab_thtx_DisclosureOfDeferredTaxRelatedToEquityComponentOfConvertibleNotesExplanatoryTableTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DisclosureOfDeferredTaxRelatedToEquityComponentOfConvertibleNotesExplanatoryTableTextBlock" xml:lang="en-US">Disclosure of deferred tax related to equity component of convertible notes explanatory.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DisclosureOfLeaseLiabilitiesAbstract" xlink:label="loc_thtx_DisclosureOfLeaseLiabilitiesAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DisclosureOfLeaseLiabilitiesAbstract" xml:lang="en-US">Disclosure of Lease Liabilities [Abstract]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DisclosureOfLeaseLiabilitiesAbstract" xlink:to="lab_thtx_DisclosureOfLeaseLiabilitiesAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DisclosureOfLeaseLiabilitiesAbstract" xml:lang="en-US">Disclosure of Lease Liabilities.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DisclosureOfLeaseLiabilitiesTableTextBlock" xlink:label="loc_thtx_DisclosureOfLeaseLiabilitiesTableTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DisclosureOfLeaseLiabilitiesTableTextBlock" xml:lang="en-US">Disclosure of Lease Liabilities [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_DisclosureOfLeaseLiabilitiesTableTextBlock" xml:lang="en-US">Summary of lease liabilities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DisclosureOfLeaseLiabilitiesTableTextBlock" xlink:to="lab_thtx_DisclosureOfLeaseLiabilitiesTableTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DisclosureOfLeaseLiabilitiesTableTextBlock" xml:lang="en-US">Disclosure of Lease Liabilities.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_ShareCapitalTable" xlink:label="loc_thtx_ShareCapitalTable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_ShareCapitalTable" xml:lang="en-US">Share Capital [Table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_ShareCapitalTable" xlink:to="lab_thtx_ShareCapitalTable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_ShareCapitalTable" xml:lang="en-US">Share capital [table]</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ContinuingInvolvementInDerecognisedFinancialAssetsByTypeOfInstrumentAxis" xlink:label="loc_ifrs-full_ContinuingInvolvementInDerecognisedFinancialAssetsByTypeOfInstrumentAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ContinuingInvolvementInDerecognisedFinancialAssetsByTypeOfInstrumentAxis" xml:lang="en-US">Continuing involvement in derecognised financial assets by type of instrument [axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ContinuingInvolvementInDerecognisedFinancialAssetsByTypeOfInstrumentAxis" xlink:to="lab_ifrs-full_ContinuingInvolvementInDerecognisedFinancialAssetsByTypeOfInstrumentAxis" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ContinuingInvolvementInDerecognisedFinancialAssetsByTypeOfInstrumentDomain" xlink:label="loc_ifrs-full_ContinuingInvolvementInDerecognisedFinancialAssetsByTypeOfInstrumentDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ContinuingInvolvementInDerecognisedFinancialAssetsByTypeOfInstrumentDomain" xml:lang="en-US">Continuing involvement in derecognised financial assets by type of instrument [domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ContinuingInvolvementInDerecognisedFinancialAssetsByTypeOfInstrumentDomain" xlink:to="lab_ifrs-full_ContinuingInvolvementInDerecognisedFinancialAssetsByTypeOfInstrumentDomain" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_ShareCapitalLineItems" xlink:label="loc_thtx_ShareCapitalLineItems" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_ShareCapitalLineItems" xml:lang="en-US">Share Capital [Line Items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_ShareCapitalLineItems" xlink:to="lab_thtx_ShareCapitalLineItems" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_ShareCapitalLineItems" xml:lang="en-US">Share capital [line items]</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DisclosureOfDetailedInformationForShareBasedCompensationExpenseStockOptionPlanExplanatoryTableTextBlock" xlink:label="loc_thtx_DisclosureOfDetailedInformationForShareBasedCompensationExpenseStockOptionPlanExplanatoryTableTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DisclosureOfDetailedInformationForShareBasedCompensationExpenseStockOptionPlanExplanatoryTableTextBlock" xml:lang="en-US">Disclosure Of Detailed Information For Share Based Compensation Expense Stock Option Plan Explanatory [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_DisclosureOfDetailedInformationForShareBasedCompensationExpenseStockOptionPlanExplanatoryTableTextBlock" xml:lang="en-US">Summary of the share-based compensation expense for the stock option plan</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DisclosureOfDetailedInformationForShareBasedCompensationExpenseStockOptionPlanExplanatoryTableTextBlock" xlink:to="lab_thtx_DisclosureOfDetailedInformationForShareBasedCompensationExpenseStockOptionPlanExplanatoryTableTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DisclosureOfDetailedInformationForShareBasedCompensationExpenseStockOptionPlanExplanatoryTableTextBlock" xml:lang="en-US">Disclosure of detailed information for share based compensation expense stock option plan explanatory.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DisclosureOfDetailedInformationForChangesInTheNumberOfOptionsOutstandingExplanatoryTableTextBlock" xlink:label="loc_thtx_DisclosureOfDetailedInformationForChangesInTheNumberOfOptionsOutstandingExplanatoryTableTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DisclosureOfDetailedInformationForChangesInTheNumberOfOptionsOutstandingExplanatoryTableTextBlock" xml:lang="en-US">Disclosure Of Detailed Information For Changes In The Number Of Options Outstanding Explanatory [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_DisclosureOfDetailedInformationForChangesInTheNumberOfOptionsOutstandingExplanatoryTableTextBlock" xml:lang="en-US">Summary of changes in the number of options outstanding</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DisclosureOfDetailedInformationForChangesInTheNumberOfOptionsOutstandingExplanatoryTableTextBlock" xlink:to="lab_thtx_DisclosureOfDetailedInformationForChangesInTheNumberOfOptionsOutstandingExplanatoryTableTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DisclosureOfDetailedInformationForChangesInTheNumberOfOptionsOutstandingExplanatoryTableTextBlock" xml:lang="en-US">Disclosure of detailed information for changes in the number of options outstanding explanatory.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DisclosureOfTheModelUsedToDetermineFiarValueOfStockAppreciationRightsTextBlock" xlink:label="loc_thtx_DisclosureOfTheModelUsedToDetermineFiarValueOfStockAppreciationRightsTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DisclosureOfTheModelUsedToDetermineFiarValueOfStockAppreciationRightsTextBlock" xml:lang="en-US">Disclosure Of The Model Used To Determine Fiar Value Of Stock Appreciation Rights [Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_DisclosureOfTheModelUsedToDetermineFiarValueOfStockAppreciationRightsTextBlock" xml:lang="en-US">Summary of the model used to determine fiar value of stock appreciation rights</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DisclosureOfTheModelUsedToDetermineFiarValueOfStockAppreciationRightsTextBlock" xlink:to="lab_thtx_DisclosureOfTheModelUsedToDetermineFiarValueOfStockAppreciationRightsTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DisclosureOfTheModelUsedToDetermineFiarValueOfStockAppreciationRightsTextBlock" xml:lang="en-US">Disclosure of the model used to determine fiar value of stock appreciation rights explanatory.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfNumberAndWeightedAverageRemainingContractualLifeOfOutstandingShareOptionsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfNumberAndWeightedAverageRemainingContractualLifeOfOutstandingShareOptionsExplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfNumberAndWeightedAverageRemainingContractualLifeOfOutstandingShareOptionsExplanatory" xml:lang="en-US">Disclosure of number and weighted average remaining contractual life of outstanding share options [text block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DisclosureOfNumberAndWeightedAverageRemainingContractualLifeOfOutstandingShareOptionsExplanatory" xml:lang="en-US">Summary of the following table provides stock option information</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfNumberAndWeightedAverageRemainingContractualLifeOfOutstandingShareOptionsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfNumberAndWeightedAverageRemainingContractualLifeOfOutstandingShareOptionsExplanatory" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DisclosureOfDetailedInformationAboutInAccumulatedOtherComprehensiveIncomeLossExplanatoryTextBlock" xlink:label="loc_thtx_DisclosureOfDetailedInformationAboutInAccumulatedOtherComprehensiveIncomeLossExplanatoryTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DisclosureOfDetailedInformationAboutInAccumulatedOtherComprehensiveIncomeLossExplanatoryTextBlock" xml:lang="en-US">Disclosure of Detailed Information About In Accumulated Other Comprehensive Income Loss Explanatory [Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_DisclosureOfDetailedInformationAboutInAccumulatedOtherComprehensiveIncomeLossExplanatoryTextBlock" xml:lang="en-US">Summary of Accumulated other comprehensive income (loss) (Detail)</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DisclosureOfDetailedInformationAboutInAccumulatedOtherComprehensiveIncomeLossExplanatoryTextBlock" xlink:to="lab_thtx_DisclosureOfDetailedInformationAboutInAccumulatedOtherComprehensiveIncomeLossExplanatoryTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DisclosureOfDetailedInformationAboutInAccumulatedOtherComprehensiveIncomeLossExplanatoryTextBlock" xml:lang="en-US">Disclosure of detailed information about in accumulated other comprehensive income loss explanatory.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DisclosureOfWeightedAverageFairValueOfOptionsGrantedAndNumberOfOptionsExplanatoryTextBlock" xlink:label="loc_thtx_DisclosureOfWeightedAverageFairValueOfOptionsGrantedAndNumberOfOptionsExplanatoryTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DisclosureOfWeightedAverageFairValueOfOptionsGrantedAndNumberOfOptionsExplanatoryTextBlock" xml:lang="en-US">Disclosure Of Weighted Average Fair Value Of Options Granted And Number Of Options Explanatory [Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_DisclosureOfWeightedAverageFairValueOfOptionsGrantedAndNumberOfOptionsExplanatoryTextBlock" xml:lang="en-US">Summary of the measurement date weighted average fair value of stock options granted</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DisclosureOfWeightedAverageFairValueOfOptionsGrantedAndNumberOfOptionsExplanatoryTextBlock" xlink:to="lab_thtx_DisclosureOfWeightedAverageFairValueOfOptionsGrantedAndNumberOfOptionsExplanatoryTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DisclosureOfWeightedAverageFairValueOfOptionsGrantedAndNumberOfOptionsExplanatoryTextBlock" xml:lang="en-US">Disclosure of weighted average fair value of options granted and number of options [Explanatory].</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DisclosureOfWeightedAverageNumberOfSharesOutstandingExplanatoryTextBlock" xlink:label="loc_thtx_DisclosureOfWeightedAverageNumberOfSharesOutstandingExplanatoryTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DisclosureOfWeightedAverageNumberOfSharesOutstandingExplanatoryTextBlock" xml:lang="en-US">Disclosure Of Weighted Average Number Of Shares Outstanding Explanatory [Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_DisclosureOfWeightedAverageNumberOfSharesOutstandingExplanatoryTextBlock" xml:lang="en-US">Summary of earnings per share calculation</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DisclosureOfWeightedAverageNumberOfSharesOutstandingExplanatoryTextBlock" xlink:to="lab_thtx_DisclosureOfWeightedAverageNumberOfSharesOutstandingExplanatoryTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DisclosureOfWeightedAverageNumberOfSharesOutstandingExplanatoryTextBlock" xml:lang="en-US">Disclosure of weighted average number of shares outstanding [Explanatory].</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DisclosureInTabularFormOfSignificantUnobservableInputsUsedInTheMeasurementOfFairValueOfWarrantLiabilities" xlink:label="loc_thtx_DisclosureInTabularFormOfSignificantUnobservableInputsUsedInTheMeasurementOfFairValueOfWarrantLiabilities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DisclosureInTabularFormOfSignificantUnobservableInputsUsedInTheMeasurementOfFairValueOfWarrantLiabilities" xml:lang="en-US">Disclosure In Tabular Form Of Significant Unobservable Inputs Used In The Measurement Of Fair Value Of Warrant Liabilities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_DisclosureInTabularFormOfSignificantUnobservableInputsUsedInTheMeasurementOfFairValueOfWarrantLiabilities" xml:lang="en-US">Summary of measurement of fair value of warrant liabilities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DisclosureInTabularFormOfSignificantUnobservableInputsUsedInTheMeasurementOfFairValueOfWarrantLiabilities" xlink:to="lab_thtx_DisclosureInTabularFormOfSignificantUnobservableInputsUsedInTheMeasurementOfFairValueOfWarrantLiabilities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DisclosureInTabularFormOfSignificantUnobservableInputsUsedInTheMeasurementOfFairValueOfWarrantLiabilities" xml:lang="en-US">Disclosure in tabular form of significant unobservable inputs used in the measurement of fair value of warrant liabilities.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsExplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsExplanatory" xml:lang="en-US">Disclosure of temporary difference, unused tax losses and unused tax credits [text block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsExplanatory" xml:lang="en-US">Summary of temporary difference, unused tax losses and unused tax credits</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsExplanatory" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DisclosureOfMajorComponentOfIncomeTaxAndDeferredTaxExplanatoryTableTextBlock" xlink:label="loc_thtx_DisclosureOfMajorComponentOfIncomeTaxAndDeferredTaxExplanatoryTableTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DisclosureOfMajorComponentOfIncomeTaxAndDeferredTaxExplanatoryTableTextBlock" xml:lang="en-US">Disclosure Of Major Component Of Income Tax And Deferred Tax Explanatory [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_DisclosureOfMajorComponentOfIncomeTaxAndDeferredTaxExplanatoryTableTextBlock" xml:lang="en-US">Summary of major component of income tax and deferred tax explanatory</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DisclosureOfMajorComponentOfIncomeTaxAndDeferredTaxExplanatoryTableTextBlock" xlink:to="lab_thtx_DisclosureOfMajorComponentOfIncomeTaxAndDeferredTaxExplanatoryTableTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DisclosureOfMajorComponentOfIncomeTaxAndDeferredTaxExplanatoryTableTextBlock" xml:lang="en-US">Disclosure of major component of income tax and deferred tax explanatory.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DisclosureOfReconciliationBetweenEffectiveAndIncomeTaxAmountsExplanatoryTableTextBlock" xlink:label="loc_thtx_DisclosureOfReconciliationBetweenEffectiveAndIncomeTaxAmountsExplanatoryTableTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DisclosureOfReconciliationBetweenEffectiveAndIncomeTaxAmountsExplanatoryTableTextBlock" xml:lang="en-US">Disclosure Of Reconciliation Between Effective And Income Tax Amounts Explanatory [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_DisclosureOfReconciliationBetweenEffectiveAndIncomeTaxAmountsExplanatoryTableTextBlock" xml:lang="en-US">Summary of reconciliation between effective and income tax amounts explanatory</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DisclosureOfReconciliationBetweenEffectiveAndIncomeTaxAmountsExplanatoryTableTextBlock" xlink:to="lab_thtx_DisclosureOfReconciliationBetweenEffectiveAndIncomeTaxAmountsExplanatoryTableTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DisclosureOfReconciliationBetweenEffectiveAndIncomeTaxAmountsExplanatoryTableTextBlock" xml:lang="en-US">Disclosure of reconciliation between effective and income tax amounts explanatory.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DisclosureTabularFormOfSupplementalCashFlowexplanatoryTableTextBlock" xlink:label="loc_thtx_DisclosureTabularFormOfSupplementalCashFlowexplanatoryTableTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DisclosureTabularFormOfSupplementalCashFlowexplanatoryTableTextBlock" xml:lang="en-US">Disclosure Tabular Form Of Supplemental Cash Flow Explanatory [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_DisclosureTabularFormOfSupplementalCashFlowexplanatoryTableTextBlock" xml:lang="en-US">Summary of supplemental cash flow disclosures</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DisclosureTabularFormOfSupplementalCashFlowexplanatoryTableTextBlock" xlink:to="lab_thtx_DisclosureTabularFormOfSupplementalCashFlowexplanatoryTableTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DisclosureTabularFormOfSupplementalCashFlowexplanatoryTableTextBlock" xml:lang="en-US">Disclosure Tabular Form Of Supplemental Cash Flow [Explanatory]</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_MaturityAnalysisForNonderivativeFinancialLiabilities" xlink:label="loc_ifrs-full_MaturityAnalysisForNonderivativeFinancialLiabilities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_MaturityAnalysisForNonderivativeFinancialLiabilities" xml:lang="en-US">Disclosure of maturity analysis for non-derivative financial liabilities [text block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_MaturityAnalysisForNonderivativeFinancialLiabilities" xml:lang="en-US">Summary of maturity analysis for non-derivative financial liabilities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_MaturityAnalysisForNonderivativeFinancialLiabilities" xlink:to="lab_ifrs-full_MaturityAnalysisForNonderivativeFinancialLiabilities" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DisclosureOfCurrencyRiskExposureexplanatoryTableTextBlock" xlink:label="loc_thtx_DisclosureOfCurrencyRiskExposureexplanatoryTableTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DisclosureOfCurrencyRiskExposureexplanatoryTableTextBlock" xml:lang="en-US">Disclosure Of Currency Risk Exposure Explanatory [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_DisclosureOfCurrencyRiskExposureexplanatoryTableTextBlock" xml:lang="en-US">Summary of currency risk exposure explanatory</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DisclosureOfCurrencyRiskExposureexplanatoryTableTextBlock" xlink:to="lab_thtx_DisclosureOfCurrencyRiskExposureexplanatoryTableTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DisclosureOfCurrencyRiskExposureexplanatoryTableTextBlock" xml:lang="en-US">Disclosure Of Currency Risk Exposure [Explanatory].</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DisclosureOfApplicableExchangeRatesexplanatoryTableTextBlock" xlink:label="loc_thtx_DisclosureOfApplicableExchangeRatesexplanatoryTableTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DisclosureOfApplicableExchangeRatesexplanatoryTableTextBlock" xml:lang="en-US">Disclosure Of Applicable Exchange Rates Explanatory [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_DisclosureOfApplicableExchangeRatesexplanatoryTableTextBlock" xml:lang="en-US">Summary of applicable exchange rates explanatory</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DisclosureOfApplicableExchangeRatesexplanatoryTableTextBlock" xlink:to="lab_thtx_DisclosureOfApplicableExchangeRatesexplanatoryTableTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DisclosureOfApplicableExchangeRatesexplanatoryTableTextBlock" xml:lang="en-US">Disclosure Of Applicable Exchange Rates [Explanatory]</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfEffectOfChangesInForeignExchangeRatesExplanatory" xlink:label="loc_ifrs-full_DisclosureOfEffectOfChangesInForeignExchangeRatesExplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfEffectOfChangesInForeignExchangeRatesExplanatory" xml:lang="en-US">Disclosure of effect of changes in foreign exchange rates [text block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DisclosureOfEffectOfChangesInForeignExchangeRatesExplanatory" xml:lang="en-US">Disclosure of effect of changes in foreign exchange rates</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfEffectOfChangesInForeignExchangeRatesExplanatory" xlink:to="lab_ifrs-full_DisclosureOfEffectOfChangesInForeignExchangeRatesExplanatory" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfLiabilitiesExplanatory" xlink:label="loc_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfLiabilitiesExplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfLiabilitiesExplanatory" xml:lang="en-US">Disclosure of significant unobservable inputs used in fair value measurement of liabilities [text block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfLiabilitiesExplanatory" xml:lang="en-US">Summary of marathon warrants recognized at fair value and considered level 3</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfLiabilitiesExplanatory" xlink:to="lab_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfLiabilitiesExplanatory" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DisclosureOfDetailedInformationAboutOperatingSegmentsExplanatoryTableTextBlock" xlink:label="loc_thtx_DisclosureOfDetailedInformationAboutOperatingSegmentsExplanatoryTableTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DisclosureOfDetailedInformationAboutOperatingSegmentsExplanatoryTableTextBlock" xml:lang="en-US">Disclosure Of Detailed Information About Operating Segments Explanatory [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_DisclosureOfDetailedInformationAboutOperatingSegmentsExplanatoryTableTextBlock" xml:lang="en-US">Summary of operating segments</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DisclosureOfDetailedInformationAboutOperatingSegmentsExplanatoryTableTextBlock" xlink:to="lab_thtx_DisclosureOfDetailedInformationAboutOperatingSegmentsExplanatoryTableTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DisclosureOfDetailedInformationAboutOperatingSegmentsExplanatoryTableTextBlock" xml:lang="en-US">Disclosure of detailed information about operating segments explanatory.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesExplanatory" xlink:label="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesExplanatory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesExplanatory" xml:lang="en-US">Disclosure of transactions between related parties [text block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesExplanatory" xml:lang="en-US">Summary of key management personnel compensation comprises</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesExplanatory" xlink:to="lab_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesExplanatory" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_BasisOfPresentationTable" xlink:label="loc_thtx_BasisOfPresentationTable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_BasisOfPresentationTable" xml:lang="en-US">Basis of Presentation [Table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_BasisOfPresentationTable" xlink:to="lab_thtx_BasisOfPresentationTable" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RangeAxis" xlink:label="loc_ifrs-full_RangeAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_RangeAxis" xml:lang="en-US">Range [axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RangeAxis" xlink:to="lab_ifrs-full_RangeAxis" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RangeDomain" xlink:label="loc_ifrs-full_RangeDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_RangeDomain" xml:lang="en-US">Range [domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RangeDomain" xlink:to="lab_ifrs-full_RangeDomain" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_BasisOfPresentationLineItems" xlink:label="loc_thtx_BasisOfPresentationLineItems" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_BasisOfPresentationLineItems" xml:lang="en-US">Basis of Presentation [Line Items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_BasisOfPresentationLineItems" xlink:to="lab_thtx_BasisOfPresentationLineItems" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherFinancialAssets" xlink:label="loc_ifrs-full_OtherFinancialAssets" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_OtherFinancialAssets" xml:lang="en-US">Other financial assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_OtherFinancialAssets" xml:lang="en-US">Bonds and money market funds</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherFinancialAssets" xlink:to="lab_ifrs-full_OtherFinancialAssets" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable" xlink:label="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable" xml:lang="en-US">Disclosure of detailed information about property, plant and equipment [table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable" xlink:to="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems" xlink:label="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems" xml:lang="en-US">Disclosure of detailed information about property, plant and equipment [line items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems" xlink:to="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DepreciationMethodPropertyPlantAndEquipment" xlink:label="loc_ifrs-full_DepreciationMethodPropertyPlantAndEquipment" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DepreciationMethodPropertyPlantAndEquipment" xml:lang="en-US">Depreciation method, property, plant and equipment</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DepreciationMethodPropertyPlantAndEquipment" xml:lang="en-US">Depreciation method, property, plant and equipment</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DepreciationMethodPropertyPlantAndEquipment" xlink:to="lab_ifrs-full_DepreciationMethodPropertyPlantAndEquipment" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DepreciationRatePropertyPlantAndEquipment" xlink:label="loc_ifrs-full_DepreciationRatePropertyPlantAndEquipment" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DepreciationRatePropertyPlantAndEquipment" xml:lang="en-US">Depreciation rate, property, plant and equipment</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DepreciationRatePropertyPlantAndEquipment" xml:lang="en-US">Depreciation rate, property, plant and equipment</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DepreciationRatePropertyPlantAndEquipment" xlink:to="lab_ifrs-full_DepreciationRatePropertyPlantAndEquipment" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_UsefulLifeMeasuredAsPeriodOfTimePropertyPlantAndEquipment" xlink:label="loc_ifrs-full_UsefulLifeMeasuredAsPeriodOfTimePropertyPlantAndEquipment" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_UsefulLifeMeasuredAsPeriodOfTimePropertyPlantAndEquipment" xml:lang="en-US">Useful life measured as period of time, property, plant and equipment</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_UsefulLifeMeasuredAsPeriodOfTimePropertyPlantAndEquipment" xml:lang="en-US">Useful life measured as period of time, property, plant and equipment</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_UsefulLifeMeasuredAsPeriodOfTimePropertyPlantAndEquipment" xlink:to="lab_ifrs-full_UsefulLifeMeasuredAsPeriodOfTimePropertyPlantAndEquipment" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfUsefulLifePropertyPlantAndEquipment" xlink:label="loc_ifrs-full_DescriptionOfUsefulLifePropertyPlantAndEquipment" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DescriptionOfUsefulLifePropertyPlantAndEquipment" xml:lang="en-US">Description of useful life, property, plant and equipment</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DescriptionOfUsefulLifePropertyPlantAndEquipment" xml:lang="en-US">Description of useful life, property, plant and equipment</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfUsefulLifePropertyPlantAndEquipment" xlink:to="lab_ifrs-full_DescriptionOfUsefulLifePropertyPlantAndEquipment" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis" xlink:label="loc_ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis" xml:lang="en-US">Classes of property, plant and equipment [axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis" xlink:to="lab_ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain" xlink:label="loc_ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain" xml:lang="en-US">Classes of property, plant and equipment [domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain" xlink:to="lab_ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ComputerEquipmentMember" xlink:label="loc_ifrs-full_ComputerEquipmentMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ComputerEquipmentMember" xml:lang="en-US">Computer equipment [member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_ComputerEquipmentMember" xml:lang="en-US">Computer equipment</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_ComputerEquipmentMember" xml:lang="en-US">Computer equipment</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ComputerEquipmentMember" xlink:to="lab_ifrs-full_ComputerEquipmentMember" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_LaboratoryEquipmentMember" xlink:label="loc_thtx_LaboratoryEquipmentMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_LaboratoryEquipmentMember" xml:lang="en-US">Laboratory Equipment [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_LaboratoryEquipmentMember" xml:lang="en-US">Laboratory equipment</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_LaboratoryEquipmentMember" xml:lang="en-US">Laboratory equipment</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_LaboratoryEquipmentMember" xlink:to="lab_thtx_LaboratoryEquipmentMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_LaboratoryEquipmentMember" xml:lang="en-US">Laboratory Equipment [Member].</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OfficeEquipmentMember" xlink:label="loc_ifrs-full_OfficeEquipmentMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_OfficeEquipmentMember" xml:lang="en-US">Office equipment [member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_OfficeEquipmentMember" xml:lang="en-US">Office furniture and equipment</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_OfficeEquipmentMember" xml:lang="en-US">Office furniture and equipment</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OfficeEquipmentMember" xlink:to="lab_ifrs-full_OfficeEquipmentMember" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LeaseholdImprovementsMember" xlink:label="loc_ifrs-full_LeaseholdImprovementsMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_LeaseholdImprovementsMember" xml:lang="en-US">Leasehold improvements [member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_LeaseholdImprovementsMember" xml:lang="en-US">Leasehold improvements</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_LeaseholdImprovementsMember" xml:lang="en-US">Leasehold improvements</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LeaseholdImprovementsMember" xlink:to="lab_ifrs-full_LeaseholdImprovementsMember" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfIntangibleAssetsTable" xlink:label="loc_ifrs-full_DisclosureOfIntangibleAssetsTable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfIntangibleAssetsTable" xml:lang="en-US">Disclosure of detailed information about intangible assets [table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfIntangibleAssetsTable" xlink:to="lab_ifrs-full_DisclosureOfIntangibleAssetsTable" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfIntangibleAssetsLineItems" xlink:label="loc_ifrs-full_DisclosureOfIntangibleAssetsLineItems" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfIntangibleAssetsLineItems" xml:lang="en-US">Disclosure of detailed information about intangible assets [line items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfIntangibleAssetsLineItems" xlink:to="lab_ifrs-full_DisclosureOfIntangibleAssetsLineItems" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_UsefulLifeMeasuredAsPeriodOfTimeIntangibleAssetsOtherThanGoodwill" xlink:label="loc_ifrs-full_UsefulLifeMeasuredAsPeriodOfTimeIntangibleAssetsOtherThanGoodwill" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_UsefulLifeMeasuredAsPeriodOfTimeIntangibleAssetsOtherThanGoodwill" xml:lang="en-US">Useful life measured as period of time, intangible assets other than goodwill</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_UsefulLifeMeasuredAsPeriodOfTimeIntangibleAssetsOtherThanGoodwill" xml:lang="en-US">Intangible assets finite useful lives</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_UsefulLifeMeasuredAsPeriodOfTimeIntangibleAssetsOtherThanGoodwill" xlink:to="lab_ifrs-full_UsefulLifeMeasuredAsPeriodOfTimeIntangibleAssetsOtherThanGoodwill" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill" xlink:label="loc_ifrs-full_AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill" xml:lang="en-US">Additions other than through business combinations, intangible assets other than goodwill</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill" xml:lang="en-US">Development expenditures capitalized</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill" xml:lang="en-US">Additions to intangibles</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill" xlink:to="lab_ifrs-full_AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillAxis" xlink:label="loc_ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillAxis" xml:lang="en-US">Classes of intangible assets other than goodwill [axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillAxis" xlink:to="lab_ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillAxis" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillDomain" xlink:label="loc_ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillDomain" xml:lang="en-US">Classes of intangible assets other than goodwill [domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillDomain" xlink:to="lab_ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillDomain" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_CommercializationRightsEgriftaMember" xlink:label="loc_thtx_CommercializationRightsEgriftaMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_CommercializationRightsEgriftaMember" xml:lang="en-US">Commercialization Rights EGRIFTA [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_CommercializationRightsEgriftaMember" xml:lang="en-US">Commercialization Rights EGRIFTA SV&#174;</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_CommercializationRightsEgriftaMember" xml:lang="en-US">Commercialization rights &#8211; EGRIFTA SV&#174;</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_CommercializationRightsEgriftaMember" xlink:to="lab_thtx_CommercializationRightsEgriftaMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_CommercializationRightsEgriftaMember" xml:lang="en-US">Commercialization Rights EGRIFTA [Member].</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_CommercializationRightsTrogarzoMember" xlink:label="loc_thtx_CommercializationRightsTrogarzoMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_CommercializationRightsTrogarzoMember" xml:lang="en-US">Commercialization Rights Trogarzo [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_CommercializationRightsTrogarzoMember" xml:lang="en-US">Commercialization Rights Trogarzo</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_CommercializationRightsTrogarzoMember" xlink:to="lab_thtx_CommercializationRightsTrogarzoMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_CommercializationRightsTrogarzoMember" xml:lang="en-US">Commercialization Rights Trogarzo [Member].</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CapitalisedDevelopmentExpenditureMember" xlink:label="loc_ifrs-full_CapitalisedDevelopmentExpenditureMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_CapitalisedDevelopmentExpenditureMember" xml:lang="en-US">Capitalised development expenditure [member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CapitalisedDevelopmentExpenditureMember" xlink:to="lab_ifrs-full_CapitalisedDevelopmentExpenditureMember" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_ThtxCommercializationRightsTrogarzoNorthAmericaMember" xlink:label="loc_thtx_ThtxCommercializationRightsTrogarzoNorthAmericaMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_ThtxCommercializationRightsTrogarzoNorthAmericaMember" xml:lang="en-US">THTX Commercialization Rights Trogarzo North America [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_ThtxCommercializationRightsTrogarzoNorthAmericaMember" xml:lang="en-US">THTX Commercialization Rights Trogarzo&#174; North America [Member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_ThtxCommercializationRightsTrogarzoNorthAmericaMember" xlink:to="lab_thtx_ThtxCommercializationRightsTrogarzoNorthAmericaMember" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfAssetsAxis" xlink:label="loc_ifrs-full_ClassesOfAssetsAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ClassesOfAssetsAxis" xml:lang="en-US">Classes of assets [axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfAssetsAxis" xlink:to="lab_ifrs-full_ClassesOfAssetsAxis" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfAssetsDomain" xlink:label="loc_ifrs-full_ClassesOfAssetsDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ClassesOfAssetsDomain" xml:lang="en-US">Classes of assets [domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfAssetsDomain" xlink:to="lab_ifrs-full_ClassesOfAssetsDomain" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RetrospectiveApplicationAndRetrospectiveRestatementAxis" xlink:label="loc_ifrs-full_RetrospectiveApplicationAndRetrospectiveRestatementAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_RetrospectiveApplicationAndRetrospectiveRestatementAxis" xml:lang="en-US">Retrospective application and retrospective restatement [axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RetrospectiveApplicationAndRetrospectiveRestatementAxis" xlink:to="lab_ifrs-full_RetrospectiveApplicationAndRetrospectiveRestatementAxis" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RestatedMember" xlink:label="loc_ifrs-full_RestatedMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_RestatedMember" xml:lang="en-US">Currently stated [member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RestatedMember" xlink:to="lab_ifrs-full_RestatedMember" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersTable" xlink:label="loc_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersTable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersTable" xml:lang="en-US">Disclosure of disaggregation of revenue from contracts with customers [table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersTable" xlink:to="lab_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersTable" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersLineItems" xlink:label="loc_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersLineItems" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersLineItems" xml:lang="en-US">Disclosure of disaggregation of revenue from contracts with customers [line items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersLineItems" xlink:to="lab_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersLineItems" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GeographicalAreasAxis" xlink:label="loc_ifrs-full_GeographicalAreasAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_GeographicalAreasAxis" xml:lang="en-US">Geographical areas [axis]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_GeographicalAreasAxis" xml:lang="en-US">Geographical areas [axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GeographicalAreasAxis" xlink:to="lab_ifrs-full_GeographicalAreasAxis" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GeographicalAreasDomain" xlink:label="loc_ifrs-full_GeographicalAreasDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_GeographicalAreasDomain" xml:lang="en-US">Geographical areas [domain]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_GeographicalAreasDomain" xml:lang="en-US">Geographical areas [domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GeographicalAreasDomain" xlink:to="lab_ifrs-full_GeographicalAreasDomain" />
<loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_EuropeMember" xlink:label="loc_srt_EuropeMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_srt_EuropeMember" xml:lang="en-US">Europe [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_srt_EuropeMember" xml:lang="en-US">Europe</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_EuropeMember" xlink:to="lab_srt_EuropeMember" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProductsAndServicesAxis" xlink:label="loc_ifrs-full_ProductsAndServicesAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ProductsAndServicesAxis" xml:lang="en-US">Products and services [axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProductsAndServicesAxis" xlink:to="lab_ifrs-full_ProductsAndServicesAxis" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProductsAndServicesDomain" xlink:label="loc_ifrs-full_ProductsAndServicesDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ProductsAndServicesDomain" xml:lang="en-US">Products and services [domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProductsAndServicesDomain" xlink:to="lab_ifrs-full_ProductsAndServicesDomain" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_TrogarzoNetSalesMember" xlink:label="loc_thtx_TrogarzoNetSalesMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_TrogarzoNetSalesMember" xml:lang="en-US">TROGARZO Net Sales [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_TrogarzoNetSalesMember" xml:lang="en-US">Trogarzo&#174; net sales</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_TrogarzoNetSalesMember" xlink:to="lab_thtx_TrogarzoNetSalesMember" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_EgriftaMember" xlink:label="loc_thtx_EgriftaMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_EgriftaMember" xml:lang="en-US">EGRIFTA [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_EgriftaMember" xml:lang="en-US">EGRIFTA&#174; net sales</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_EgriftaMember" xlink:to="lab_thtx_EgriftaMember" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DisaggregationOfRevenueByGeographicalAreaTable" xlink:label="loc_thtx_DisaggregationOfRevenueByGeographicalAreaTable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DisaggregationOfRevenueByGeographicalAreaTable" xml:lang="en-US">Disaggregation Of Revenue By Geographical Area [Table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DisaggregationOfRevenueByGeographicalAreaTable" xlink:to="lab_thtx_DisaggregationOfRevenueByGeographicalAreaTable" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2024/country-2024.xsd#country_CA" xlink:label="loc_country_CA" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_country_CA" xml:lang="en-US">CANADA</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_country_CA" xml:lang="en-US">Canada [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/presentationGuidance" xlink:label="lab_country_CA" xml:lang="en-US">CA</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_country_CA" xml:lang="en-US">Canada</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_country_CA" xlink:to="lab_country_CA" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2024/country-2024.xsd#country_US" xlink:label="loc_country_US" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_country_US" xml:lang="en-US">UNITED STATES</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_country_US" xml:lang="en-US">United States [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_country_US" xml:lang="en-US">US$</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/presentationGuidance" xlink:label="lab_country_US" xml:lang="en-US">United States</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_country_US" xlink:to="lab_country_US" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DisaggregationOfRevenueByGeographicalAreaLineItems" xlink:label="loc_thtx_DisaggregationOfRevenueByGeographicalAreaLineItems" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DisaggregationOfRevenueByGeographicalAreaLineItems" xml:lang="en-US">Disaggregation Of Revenue By Geographical Area [Line Items]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_DisaggregationOfRevenueByGeographicalAreaLineItems" xml:lang="en-US">Disaggregation Of Revenue By Geographical Area [Line Items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DisaggregationOfRevenueByGeographicalAreaLineItems" xlink:to="lab_thtx_DisaggregationOfRevenueByGeographicalAreaLineItems" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DisaggregationOfRevenueByGeographicalAreaLineItems" xml:lang="en-US">Disaggregation of revenue by geographical area.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DisclosureOfPersonnelExpensesExplanatoryAbstract" xlink:label="loc_thtx_DisclosureOfPersonnelExpensesExplanatoryAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DisclosureOfPersonnelExpensesExplanatoryAbstract" xml:lang="en-US">Disclosure Of Personnel Expenses Explanatory [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_DisclosureOfPersonnelExpensesExplanatoryAbstract" xml:lang="en-US">Disclosure Of Personnel Expenses Explanatory [Abstract]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DisclosureOfPersonnelExpensesExplanatoryAbstract" xlink:to="lab_thtx_DisclosureOfPersonnelExpensesExplanatoryAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DisclosureOfPersonnelExpensesExplanatoryAbstract" xml:lang="en-US">Disclosure of personnel expenses</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ShorttermEmployeeBenefitsExpense" xlink:label="loc_ifrs-full_ShorttermEmployeeBenefitsExpense" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ShorttermEmployeeBenefitsExpense" xml:lang="en-US">Short-term employee benefits expense</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_ShorttermEmployeeBenefitsExpense" xml:lang="en-US">Salaries and short-term employee benefits</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ShorttermEmployeeBenefitsExpense" xlink:to="lab_ifrs-full_ShorttermEmployeeBenefitsExpense" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PostemploymentBenefitExpenseDefinedContributionPlans" xlink:label="loc_ifrs-full_PostemploymentBenefitExpenseDefinedContributionPlans" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_PostemploymentBenefitExpenseDefinedContributionPlans" xml:lang="en-US">Post-employment benefit expense, defined contribution plans</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_PostemploymentBenefitExpenseDefinedContributionPlans" xml:lang="en-US">Post-employment benefits</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PostemploymentBenefitExpenseDefinedContributionPlans" xlink:to="lab_ifrs-full_PostemploymentBenefitExpenseDefinedContributionPlans" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ExpenseFromSharebasedPaymentTransactionsWithEmployees" xlink:label="loc_ifrs-full_ExpenseFromSharebasedPaymentTransactionsWithEmployees" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ExpenseFromSharebasedPaymentTransactionsWithEmployees" xml:lang="en-US">Expense from share-based payment transactions with employees</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_ExpenseFromSharebasedPaymentTransactionsWithEmployees" xml:lang="en-US">Share-based compensation</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_ExpenseFromSharebasedPaymentTransactionsWithEmployees" xml:lang="en-US">Share based compensation expense</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ExpenseFromSharebasedPaymentTransactionsWithEmployees" xlink:to="lab_ifrs-full_ExpenseFromSharebasedPaymentTransactionsWithEmployees" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EmployeeBenefitsExpense" xlink:label="loc_ifrs-full_EmployeeBenefitsExpense" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_EmployeeBenefitsExpense" xml:lang="en-US">Employee benefits expense</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_ifrs-full_EmployeeBenefitsExpense" xml:lang="en-US">Employee benefits expense</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_EmployeeBenefitsExpense" xlink:to="lab_ifrs-full_EmployeeBenefitsExpense" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TerminationBenefitsExpense" xlink:label="loc_ifrs-full_TerminationBenefitsExpense" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_TerminationBenefitsExpense" xml:lang="en-US">Termination benefits expense</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_TerminationBenefitsExpense" xml:lang="en-US">Termination benefits</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TerminationBenefitsExpense" xlink:to="lab_ifrs-full_TerminationBenefitsExpense" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_AmountOfChargesRelatedToSeveranceAndOtherExpenses" xlink:label="loc_thtx_AmountOfChargesRelatedToSeveranceAndOtherExpenses" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_AmountOfChargesRelatedToSeveranceAndOtherExpenses" xml:lang="en-US">Amount Of Charges Related To Severance And Other Expenses</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_AmountOfChargesRelatedToSeveranceAndOtherExpenses" xml:lang="en-US">Amount of charges related to severance and other expenses</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_AmountOfChargesRelatedToSeveranceAndOtherExpenses" xlink:to="lab_thtx_AmountOfChargesRelatedToSeveranceAndOtherExpenses" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_AmountOfChargesRelatedToSeveranceAndOtherExpenses" xml:lang="en-US">Amount of charges related to severance and other expenses.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_ScheduleOfDetailInformationAboutFinanceIncomeAndCostsAbstract" xlink:label="loc_thtx_ScheduleOfDetailInformationAboutFinanceIncomeAndCostsAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_ScheduleOfDetailInformationAboutFinanceIncomeAndCostsAbstract" xml:lang="en-US">Schedule Of Detail Information About Finance Income And Costs [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_ScheduleOfDetailInformationAboutFinanceIncomeAndCostsAbstract" xml:lang="en-US">Scheduled of Detailed Information About Finance Costs [Abstract]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_ScheduleOfDetailInformationAboutFinanceIncomeAndCostsAbstract" xlink:to="lab_thtx_ScheduleOfDetailInformationAboutFinanceIncomeAndCostsAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_ScheduleOfDetailInformationAboutFinanceIncomeAndCostsAbstract" xml:lang="en-US">Schedule of detail information about finance income and costs abstract.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RevenueFromInterest" xlink:label="loc_ifrs-full_RevenueFromInterest" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_RevenueFromInterest" xml:lang="en-US">Interest income</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_RevenueFromInterest" xml:lang="en-US">Interest income</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RevenueFromInterest" xlink:to="lab_ifrs-full_RevenueFromInterest" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InterestExpenseOnDebtInstrumentsIssued" xlink:label="loc_ifrs-full_InterestExpenseOnDebtInstrumentsIssued" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_InterestExpenseOnDebtInstrumentsIssued" xml:lang="en-US">Interest expense on debt instruments issued</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_ifrs-full_InterestExpenseOnDebtInstrumentsIssued" xml:lang="en-US">Interest on convertible unsecured senior notes and on long-term loan</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InterestExpenseOnDebtInstrumentsIssued" xlink:to="lab_ifrs-full_InterestExpenseOnDebtInstrumentsIssued" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NetForeignExchangeLoss" xlink:label="loc_ifrs-full_NetForeignExchangeLoss" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_NetForeignExchangeLoss" xml:lang="en-US">Net foreign exchange loss</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_ifrs-full_NetForeignExchangeLoss" xml:lang="en-US">Net foreign currency loss</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NetForeignExchangeLoss" xlink:to="lab_ifrs-full_NetForeignExchangeLoss" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherFinanceCost" xlink:label="loc_ifrs-full_OtherFinanceCost" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_OtherFinanceCost" xml:lang="en-US">Other finance cost</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_ifrs-full_OtherFinanceCost" xml:lang="en-US">Other&#160;</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherFinanceCost" xlink:to="lab_ifrs-full_OtherFinanceCost" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_LossOnLongTermDebtModificationAndRepayment" xlink:label="loc_thtx_LossOnLongTermDebtModificationAndRepayment" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_LossOnLongTermDebtModificationAndRepayment" xml:lang="en-US">Loss On Long Term Debt Modification And Repayment</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_thtx_LossOnLongTermDebtModificationAndRepayment" xml:lang="en-US">Loss on long-term debt modifications and repayment</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_LossOnLongTermDebtModificationAndRepayment" xlink:to="lab_thtx_LossOnLongTermDebtModificationAndRepayment" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_LossOnLongTermDebtModificationAndRepayment" xml:lang="en-US">Loss on long term debt modification and repayment.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_NetGainLossOnFinancialInstrumentsCarriedAtFairValue" xlink:label="loc_thtx_NetGainLossOnFinancialInstrumentsCarriedAtFairValue" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_NetGainLossOnFinancialInstrumentsCarriedAtFairValue" xml:lang="en-US">Net Gain Loss On Financial Instruments Carried At Fair Value</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_NetGainLossOnFinancialInstrumentsCarriedAtFairValue" xml:lang="en-US">Net gain on financial instruments carried at fair value</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_NetGainLossOnFinancialInstrumentsCarriedAtFairValue" xlink:to="lab_thtx_NetGainLossOnFinancialInstrumentsCarriedAtFairValue" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_NetGainLossOnFinancialInstrumentsCarriedAtFairValue" xml:lang="en-US">Net gain loss on financial instruments carried at fair value.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_AccretionExpenseWriteOffAndAmortizationOfDeferredFinancingCosts" xlink:label="loc_thtx_AccretionExpenseWriteOffAndAmortizationOfDeferredFinancingCosts" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_AccretionExpenseWriteOffAndAmortizationOfDeferredFinancingCosts" xml:lang="en-US">Accretion Expense Write Off And Amortization Of Deferred Financing Costs</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_thtx_AccretionExpenseWriteOffAndAmortizationOfDeferredFinancingCosts" xml:lang="en-US">Accretion expense, write-off and amortization of deferred financing costs</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_AccretionExpenseWriteOffAndAmortizationOfDeferredFinancingCosts" xlink:to="lab_thtx_AccretionExpenseWriteOffAndAmortizationOfDeferredFinancingCosts" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_AccretionExpenseWriteOffAndAmortizationOfDeferredFinancingCosts" xml:lang="en-US">Accretion expense write off and amortization of deferred financing costs.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GovernmentDebtInstrumentsHeld" xlink:label="loc_ifrs-full_GovernmentDebtInstrumentsHeld" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_GovernmentDebtInstrumentsHeld" xml:lang="en-US">Government debt instruments held</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_GovernmentDebtInstrumentsHeld" xml:lang="en-US">Bonds</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GovernmentDebtInstrumentsHeld" xlink:to="lab_ifrs-full_GovernmentDebtInstrumentsHeld" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_BalanceOnOtherFinancialAssets" xlink:label="loc_thtx_BalanceOnOtherFinancialAssets" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_BalanceOnOtherFinancialAssets" xml:lang="en-US">Balance on Other Financial Assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_BalanceOnOtherFinancialAssets" xml:lang="en-US">Balance as at November 30</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_BalanceOnOtherFinancialAssets" xlink:to="lab_thtx_BalanceOnOtherFinancialAssets" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_BalanceOnOtherFinancialAssets" xml:lang="en-US">Balance on other financial assets.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_GuaranteedInvestmentCertificates" xlink:label="loc_thtx_GuaranteedInvestmentCertificates" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_GuaranteedInvestmentCertificates" xml:lang="en-US">Guaranteed Investment Certificates</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_GuaranteedInvestmentCertificates" xml:lang="en-US">Guaranteed investment certificates</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_GuaranteedInvestmentCertificates" xlink:to="lab_thtx_GuaranteedInvestmentCertificates" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_GuaranteedInvestmentCertificates" xml:lang="en-US">Guaranteed investment certificates.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_ScheduleOfDetailedInformationAboutBondsAndMoneyMarketFunds1Abstract" xlink:label="loc_thtx_ScheduleOfDetailedInformationAboutBondsAndMoneyMarketFunds1Abstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_ScheduleOfDetailedInformationAboutBondsAndMoneyMarketFunds1Abstract" xml:lang="en-US">Schedule Of Detailed Information About Bonds And Money Market Funds1 [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_ScheduleOfDetailedInformationAboutBondsAndMoneyMarketFunds1Abstract" xml:lang="en-US">Schedule of Detailed Information About Bonds and Money Market Funds</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_ScheduleOfDetailedInformationAboutBondsAndMoneyMarketFunds1Abstract" xlink:to="lab_thtx_ScheduleOfDetailedInformationAboutBondsAndMoneyMarketFunds1Abstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_ScheduleOfDetailedInformationAboutBondsAndMoneyMarketFunds1Abstract" xml:lang="en-US">Schedule of detailed information about bonds and money market funds.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFinancialAssetsTable" xlink:label="loc_ifrs-full_DisclosureOfFinancialAssetsTable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfFinancialAssetsTable" xml:lang="en-US">Disclosure of financial assets [table]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DisclosureOfFinancialAssetsTable" xml:lang="en-US">Disclosure of financial assets [table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFinancialAssetsTable" xlink:to="lab_ifrs-full_DisclosureOfFinancialAssetsTable" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BottomOfRangeMember" xlink:label="loc_ifrs-full_BottomOfRangeMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_BottomOfRangeMember" xml:lang="en-US">Bottom of range [member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_BottomOfRangeMember" xml:lang="en-US">Bottom of range</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/definitionGuidance" xlink:label="lab_ifrs-full_BottomOfRangeMember" xml:lang="en-US">Bottom of range [member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_BottomOfRangeMember" xlink:to="lab_ifrs-full_BottomOfRangeMember" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TopOfRangeMember" xlink:label="loc_ifrs-full_TopOfRangeMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_TopOfRangeMember" xml:lang="en-US">Top of range [member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_TopOfRangeMember" xml:lang="en-US">Top of range</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/definitionGuidance" xlink:label="lab_ifrs-full_TopOfRangeMember" xml:lang="en-US">Top of range [member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TopOfRangeMember" xlink:to="lab_ifrs-full_TopOfRangeMember" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFinancialAssetsLineItems" xlink:label="loc_ifrs-full_DisclosureOfFinancialAssetsLineItems" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfFinancialAssetsLineItems" xml:lang="en-US">Disclosure of financial assets [line items]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_DisclosureOfFinancialAssetsLineItems" xml:lang="en-US">Disclosure of detailed information about Financial Assets [Line Items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFinancialAssetsLineItems" xlink:to="lab_ifrs-full_DisclosureOfFinancialAssetsLineItems" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_FinancialAssetsStatedInterestPercentage" xlink:label="loc_thtx_FinancialAssetsStatedInterestPercentage" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_FinancialAssetsStatedInterestPercentage" xml:lang="en-US">Financial Assets Stated Interest Percentage</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_FinancialAssetsStatedInterestPercentage" xml:lang="en-US">Stated interest rate</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_FinancialAssetsStatedInterestPercentage" xlink:to="lab_thtx_FinancialAssetsStatedInterestPercentage" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_FinancialAssetsStatedInterestPercentage" xml:lang="en-US">Financial assets, stated interest percentage.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_FinancialAssetsAverageMaturityTerm" xlink:label="loc_thtx_FinancialAssetsAverageMaturityTerm" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_FinancialAssetsAverageMaturityTerm" xml:lang="en-US">Financial Assets Average Maturity Term</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_FinancialAssetsAverageMaturityTerm" xml:lang="en-US">Average maturity period</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_FinancialAssetsAverageMaturityTerm" xlink:to="lab_thtx_FinancialAssetsAverageMaturityTerm" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_FinancialAssetsAverageMaturityTerm" xml:lang="en-US">Financial assets average maturity term.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_ScheduleOfDetailedInformationAboutTradeAndOtherReceivablesAbstract" xlink:label="loc_thtx_ScheduleOfDetailedInformationAboutTradeAndOtherReceivablesAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_ScheduleOfDetailedInformationAboutTradeAndOtherReceivablesAbstract" xml:lang="en-US">Schedule of Detailed Information About Trade and Other Receivables [Abstract]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_ScheduleOfDetailedInformationAboutTradeAndOtherReceivablesAbstract" xlink:to="lab_thtx_ScheduleOfDetailedInformationAboutTradeAndOtherReceivablesAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_ScheduleOfDetailedInformationAboutTradeAndOtherReceivablesAbstract" xml:lang="en-US">Disclosure of detailed information about trade and other receivables.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentTradeReceivables" xlink:label="loc_ifrs-full_CurrentTradeReceivables" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_CurrentTradeReceivables" xml:lang="en-US">Current trade receivables</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_CurrentTradeReceivables" xml:lang="en-US">Trade receivables</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_CurrentTradeReceivables" xml:lang="en-US">Trade receivables</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentTradeReceivables" xlink:to="lab_ifrs-full_CurrentTradeReceivables" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentValueAddedTaxReceivables" xlink:label="loc_ifrs-full_CurrentValueAddedTaxReceivables" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_CurrentValueAddedTaxReceivables" xml:lang="en-US">Current value added tax receivables</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_CurrentValueAddedTaxReceivables" xml:lang="en-US">Sales taxes receivable</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentValueAddedTaxReceivables" xlink:to="lab_ifrs-full_CurrentValueAddedTaxReceivables" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherCurrentReceivables" xlink:label="loc_ifrs-full_OtherCurrentReceivables" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_OtherCurrentReceivables" xml:lang="en-US">Other current receivables</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_OtherCurrentReceivables" xml:lang="en-US">Other receivables</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherCurrentReceivables" xlink:to="lab_ifrs-full_OtherCurrentReceivables" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_StatementsTable" xlink:label="loc_thtx_StatementsTable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_StatementsTable" xml:lang="en-US">Statements [Table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_StatementsTable" xlink:to="lab_thtx_StatementsTable" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_MaturityAxis" xlink:label="loc_ifrs-full_MaturityAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_MaturityAxis" xml:lang="en-US">Maturity [axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_MaturityAxis" xlink:to="lab_ifrs-full_MaturityAxis" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_MaturityDomain" xlink:label="loc_ifrs-full_MaturityDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_MaturityDomain" xml:lang="en-US">Maturity [domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_MaturityDomain" xlink:to="lab_ifrs-full_MaturityDomain" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_IncomeTaxExpireTwoThousandTwentyFiveMember" xlink:label="loc_thtx_IncomeTaxExpireTwoThousandTwentyFiveMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_IncomeTaxExpireTwoThousandTwentyFiveMember" xml:lang="en-US">Income Tax Expire Two Thousand Twenty Five [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_IncomeTaxExpireTwoThousandTwentyFiveMember" xml:lang="en-US">Income tax expire 2025</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_IncomeTaxExpireTwoThousandTwentyFiveMember" xlink:to="lab_thtx_IncomeTaxExpireTwoThousandTwentyFiveMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_IncomeTaxExpireTwoThousandTwentyFiveMember" xml:lang="en-US">Income tax expire two thousand twenty five [Member].</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_IncomeTaxExpireTwoThousandTwentySixMember" xlink:label="loc_thtx_IncomeTaxExpireTwoThousandTwentySixMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_IncomeTaxExpireTwoThousandTwentySixMember" xml:lang="en-US">Income Tax Expire Two Thousand Twenty Six [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_IncomeTaxExpireTwoThousandTwentySixMember" xml:lang="en-US">Income tax expire 2026</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_IncomeTaxExpireTwoThousandTwentySixMember" xlink:to="lab_thtx_IncomeTaxExpireTwoThousandTwentySixMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_IncomeTaxExpireTwoThousandTwentySixMember" xml:lang="en-US">Income tax expire two thousand twenty six member</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_IncomeTaxExpireTwoThousandTwentySevenMember" xlink:label="loc_thtx_IncomeTaxExpireTwoThousandTwentySevenMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_IncomeTaxExpireTwoThousandTwentySevenMember" xml:lang="en-US">Income Tax Expire Two Thousand Twenty Seven [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_IncomeTaxExpireTwoThousandTwentySevenMember" xml:lang="en-US">Income tax expire 2027</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_IncomeTaxExpireTwoThousandTwentySevenMember" xlink:to="lab_thtx_IncomeTaxExpireTwoThousandTwentySevenMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_IncomeTaxExpireTwoThousandTwentySevenMember" xml:lang="en-US">Income tax expire two thousand twenty seven member</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_IncomeTaxExpireTwoThousandTwentyEightMember" xlink:label="loc_thtx_IncomeTaxExpireTwoThousandTwentyEightMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_IncomeTaxExpireTwoThousandTwentyEightMember" xml:lang="en-US">Income Tax Expire Two Thousand Twenty Eight [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_IncomeTaxExpireTwoThousandTwentyEightMember" xml:lang="en-US">Income tax expire 2028</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_IncomeTaxExpireTwoThousandTwentyEightMember" xlink:to="lab_thtx_IncomeTaxExpireTwoThousandTwentyEightMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_IncomeTaxExpireTwoThousandTwentyEightMember" xml:lang="en-US">Income tax expire two thousand twenty eight member</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_IncomeTaxExpireTwoThousandTwentyNineMember" xlink:label="loc_thtx_IncomeTaxExpireTwoThousandTwentyNineMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_IncomeTaxExpireTwoThousandTwentyNineMember" xml:lang="en-US">Income Tax Expire Two Thousand Twenty Nine [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_IncomeTaxExpireTwoThousandTwentyNineMember" xml:lang="en-US">Income tax expire 2029</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_IncomeTaxExpireTwoThousandTwentyNineMember" xlink:to="lab_thtx_IncomeTaxExpireTwoThousandTwentyNineMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_IncomeTaxExpireTwoThousandTwentyNineMember" xml:lang="en-US">Income tax expire two thousand twenty nine member</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_IncomeTaxExpireTwoThousandThirtyMember" xlink:label="loc_thtx_IncomeTaxExpireTwoThousandThirtyMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_IncomeTaxExpireTwoThousandThirtyMember" xml:lang="en-US">Income Tax Expire Two Thousand Thirty [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_IncomeTaxExpireTwoThousandThirtyMember" xml:lang="en-US">Income tax expire 2030</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_IncomeTaxExpireTwoThousandThirtyMember" xlink:to="lab_thtx_IncomeTaxExpireTwoThousandThirtyMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_IncomeTaxExpireTwoThousandThirtyMember" xml:lang="en-US">Income tax expire two thousand thirty member</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_IncomeTaxExpireTwoThousandThirtyOneMember" xlink:label="loc_thtx_IncomeTaxExpireTwoThousandThirtyOneMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_IncomeTaxExpireTwoThousandThirtyOneMember" xml:lang="en-US">Income Tax Expire Two Thousand Thirty One [Member]</label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_IncomeTaxExpireTwoThousandThirtyOneMember" xml:lang="en-US">Income tax expire two thousand thirty one member</label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_IncomeTaxExpireTwoThousandThirtyTwoMember" xml:lang="en-US">Income tax expire two thousand thirty two member</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_IncomeTaxExpireTwoThousandThirtyThreeMember" xlink:label="loc_thtx_IncomeTaxExpireTwoThousandThirtyThreeMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_IncomeTaxExpireTwoThousandThirtyThreeMember" xml:lang="en-US">Income Tax Expire Two Thousand Thirty Three [Member]</label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_IncomeTaxExpireTwoThousandThirtyThreeMember" xml:lang="en-US">Income tax expire two thousand thirty three member</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_IncomeTaxExpireTwoThousandThirtyNineMember" xlink:label="loc_thtx_IncomeTaxExpireTwoThousandThirtyNineMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_IncomeTaxExpireTwoThousandThirtyNineMember" xml:lang="en-US">Income Tax Expire Two Thousand Thirty Nine [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_IncomeTaxExpireTwoThousandThirtyNineMember" xml:lang="en-US">Income tax expire 2039</label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_IncomeTaxExpireTwoThousandThirtyNineMember" xml:lang="en-US">Income tax expire two thousand thirty nine member</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_IncomeTaxExpireTwoThousandFortyMember" xlink:label="loc_thtx_IncomeTaxExpireTwoThousandFortyMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_IncomeTaxExpireTwoThousandFortyMember" xml:lang="en-US">Income Tax Expire Two Thousand Forty [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_IncomeTaxExpireTwoThousandFortyMember" xml:lang="en-US">Income tax expire 2040</label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_IncomeTaxExpireTwoThousandFortyMember" xml:lang="en-US">Income tax expire two thousand forty member</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_IncomeTaxExpireTwoThousandFortyOneMember" xlink:label="loc_thtx_IncomeTaxExpireTwoThousandFortyOneMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_IncomeTaxExpireTwoThousandFortyOneMember" xml:lang="en-US">Income Tax Expire Two Thousand Forty One [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_IncomeTaxExpireTwoThousandFortyOneMember" xml:lang="en-US">Income tax expire 2041</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_IncomeTaxExpireTwoThousandFortyOneMember" xlink:to="lab_thtx_IncomeTaxExpireTwoThousandFortyOneMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_IncomeTaxExpireTwoThousandFortyOneMember" xml:lang="en-US">Income Tax Expire Two Thousand Forty One</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_IncomeTaxExpireTwoThousandFortyFourMember" xlink:label="loc_thtx_IncomeTaxExpireTwoThousandFortyFourMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_IncomeTaxExpireTwoThousandFortyFourMember" xml:lang="en-US">Income Tax Expire Two Thousand Forty Four [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_IncomeTaxExpireTwoThousandFortyFourMember" xml:lang="en-US">Income tax expire 2044</label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_IncomeTaxExpireTwoThousandFortyFourMember" xml:lang="en-US">Income tax expire two thousand forty three [member].</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_IncomeTaxExpireTwoThousandFortyThreeMember" xlink:label="loc_thtx_IncomeTaxExpireTwoThousandFortyThreeMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_IncomeTaxExpireTwoThousandFortyThreeMember" xml:lang="en-US">Income Tax Expire Two Thousand Forty Three [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_IncomeTaxExpireTwoThousandFortyThreeMember" xml:lang="en-US">Income tax expire 2043</label>
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<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_IncomeTaxExpireTwoThousandFortyTwoMember" xlink:label="loc_thtx_IncomeTaxExpireTwoThousandFortyTwoMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_IncomeTaxExpireTwoThousandFortyTwoMember" xml:lang="en-US">Income Tax Expire Two Thousand Forty Two [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_IncomeTaxExpireTwoThousandFortyTwoMember" xml:lang="en-US">Income tax expire 2042</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_IncomeTaxExpireTwoThousandFortyTwoMember" xlink:to="lab_thtx_IncomeTaxExpireTwoThousandFortyTwoMember" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis" xlink:label="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis" xml:lang="en-US">Temporary difference, unused tax losses and unused tax credits [axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis" xlink:to="lab_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain" xlink:label="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain" xml:lang="en-US">Temporary difference, unused tax losses and unused tax credits [domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain" xlink:to="lab_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_UnusedAndUnrecordedTaxCreditsMember" xlink:label="loc_thtx_UnusedAndUnrecordedTaxCreditsMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_UnusedAndUnrecordedTaxCreditsMember" xml:lang="en-US">Unused And Unrecorded Tax Credits [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_UnusedAndUnrecordedTaxCreditsMember" xml:lang="en-US">Unused tax credits</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_UnusedAndUnrecordedTaxCreditsMember" xlink:to="lab_thtx_UnusedAndUnrecordedTaxCreditsMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_UnusedAndUnrecordedTaxCreditsMember" xml:lang="en-US">Unused and unrecorded tax credits.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_StatementsLineItems" xlink:label="loc_thtx_StatementsLineItems" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_StatementsLineItems" xml:lang="en-US">Statements [Line Items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_StatementsLineItems" xlink:to="lab_thtx_StatementsLineItems" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RawMaterials" xlink:label="loc_ifrs-full_RawMaterials" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_RawMaterials" xml:lang="en-US">Current raw materials</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_RawMaterials" xml:lang="en-US">Raw materials</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RawMaterials" xlink:to="lab_ifrs-full_RawMaterials" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_WorkInProgress" xlink:label="loc_ifrs-full_WorkInProgress" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_WorkInProgress" xml:lang="en-US">Current work in progress</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_WorkInProgress" xml:lang="en-US">Work in progress</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_WorkInProgress" xlink:to="lab_ifrs-full_WorkInProgress" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinishedGoods" xlink:label="loc_ifrs-full_FinishedGoods" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_FinishedGoods" xml:lang="en-US">Current finished goods</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_FinishedGoods" xml:lang="en-US">Finished goods</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinishedGoods" xlink:to="lab_ifrs-full_FinishedGoods" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentAdvancesToSuppliers" xlink:label="loc_ifrs-full_CurrentAdvancesToSuppliers" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_CurrentAdvancesToSuppliers" xml:lang="en-US">Current advances to suppliers</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_CurrentAdvancesToSuppliers" xml:lang="en-US">Deposits</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentAdvancesToSuppliers" xlink:to="lab_ifrs-full_CurrentAdvancesToSuppliers" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_PrepaidExpenses" xlink:label="loc_thtx_PrepaidExpenses" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_PrepaidExpenses" xml:lang="en-US">Prepaid Expenses</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_thtx_PrepaidExpenses" xml:lang="en-US">Prepaid expenses</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_PrepaidExpenses" xlink:to="lab_thtx_PrepaidExpenses" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_PrepaidExpenses" xml:lang="en-US">Prepaid Expenses.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract" xlink:label="loc_ifrs-full_ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract" xml:lang="en-US">Reconciliation of changes in property, plant and equipment [abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract" xml:lang="en-US">Cost</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract" xlink:to="lab_ifrs-full_ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisposalsPropertyPlantAndEquipment" xlink:label="loc_ifrs-full_DisposalsPropertyPlantAndEquipment" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisposalsPropertyPlantAndEquipment" xml:lang="en-US">Disposals, property, plant and equipment</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_ifrs-full_DisposalsPropertyPlantAndEquipment" xml:lang="en-US">Disposals</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisposalsPropertyPlantAndEquipment" xlink:to="lab_ifrs-full_DisposalsPropertyPlantAndEquipment" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment" xlink:label="loc_ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment" xml:lang="en-US">Additions other than through business combinations, property, plant and equipment</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment" xml:lang="en-US">Additions</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment" xlink:to="lab_ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_AccumulatedDepreciationOnPropertyPlantAndEquipmentAbstract" xlink:label="loc_thtx_AccumulatedDepreciationOnPropertyPlantAndEquipmentAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_AccumulatedDepreciationOnPropertyPlantAndEquipmentAbstract" xml:lang="en-US">Accumulated Depreciation On Property Plant And Equipment [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_AccumulatedDepreciationOnPropertyPlantAndEquipmentAbstract" xml:lang="en-US">Accumulated depreciation</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_AccumulatedDepreciationOnPropertyPlantAndEquipmentAbstract" xlink:to="lab_thtx_AccumulatedDepreciationOnPropertyPlantAndEquipmentAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_AccumulatedDepreciationOnPropertyPlantAndEquipmentAbstract" xml:lang="en-US">Accumulated depreciation on property plant and equipment [abstract].</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DepreciationPropertyPlantAndEquipment" xlink:label="loc_ifrs-full_DepreciationPropertyPlantAndEquipment" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DepreciationPropertyPlantAndEquipment" xml:lang="en-US">Depreciation, property, plant and equipment</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DepreciationPropertyPlantAndEquipment" xml:lang="en-US">Depreciation</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/definitionGuidance" xlink:label="lab_ifrs-full_DepreciationPropertyPlantAndEquipment" xml:lang="en-US">Depreciation property plant and equipment.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DepreciationPropertyPlantAndEquipment" xlink:to="lab_ifrs-full_DepreciationPropertyPlantAndEquipment" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_AccumulatedDepreciationDisposalsPropertyPlantAndEquipment" xlink:label="loc_thtx_AccumulatedDepreciationDisposalsPropertyPlantAndEquipment" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_AccumulatedDepreciationDisposalsPropertyPlantAndEquipment" xml:lang="en-US">Accumulated Depreciation Disposals Property Plant And Equipment</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_thtx_AccumulatedDepreciationDisposalsPropertyPlantAndEquipment" xml:lang="en-US">Disposals</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_AccumulatedDepreciationDisposalsPropertyPlantAndEquipment" xlink:to="lab_thtx_AccumulatedDepreciationDisposalsPropertyPlantAndEquipment" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_AccumulatedDepreciationDisposalsPropertyPlantAndEquipment" xml:lang="en-US">Accumulated depreciation disposals property plant and equipment.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_PropertyPlantAndEquipmentAccumulatedDepreciation" xlink:label="loc_thtx_PropertyPlantAndEquipmentAccumulatedDepreciation" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_PropertyPlantAndEquipmentAccumulatedDepreciation" xml:lang="en-US">Property Plant And Equipment Accumulated Depreciation</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_thtx_PropertyPlantAndEquipmentAccumulatedDepreciation" xml:lang="en-US">Ending Balance</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_thtx_PropertyPlantAndEquipmentAccumulatedDepreciation" xml:lang="en-US">Beginning Balance</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_PropertyPlantAndEquipmentAccumulatedDepreciation" xlink:to="lab_thtx_PropertyPlantAndEquipmentAccumulatedDepreciation" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_PropertyPlantAndEquipmentAccumulatedDepreciation" xml:lang="en-US">Proprety Plant And Equipment Accumulated Depreciation.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_NetCarryingAmountAbstract" xlink:label="loc_thtx_NetCarryingAmountAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_NetCarryingAmountAbstract" xml:lang="en-US">Net Carrying Amount [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_NetCarryingAmountAbstract" xml:lang="en-US">Net carrying amounts</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_NetCarryingAmountAbstract" xml:lang="en-US">Net carrying amounts</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_NetCarryingAmountAbstract" xlink:to="lab_thtx_NetCarryingAmountAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_NetCarryingAmountAbstract" xml:lang="en-US">xxx_Net Carrying Amount Abstract</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis" xlink:label="loc_ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis" xml:lang="en-US">Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis" xlink:to="lab_ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CarryingAmountMember" xlink:label="loc_ifrs-full_CarryingAmountMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_CarryingAmountMember" xml:lang="en-US">Carrying amount [member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_CarryingAmountMember" xml:lang="en-US">Carrying amount</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CarryingAmountMember" xlink:to="lab_ifrs-full_CarryingAmountMember" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AccumulatedDepreciationAndAmortisationMember" xlink:label="loc_ifrs-full_AccumulatedDepreciationAndAmortisationMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_AccumulatedDepreciationAndAmortisationMember" xml:lang="en-US">Accumulated depreciation and amortisation [member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_AccumulatedDepreciationAndAmortisationMember" xml:lang="en-US">Accumulated depreciation</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AccumulatedDepreciationAndAmortisationMember" xlink:to="lab_ifrs-full_AccumulatedDepreciationAndAmortisationMember" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GrossCarryingAmountMember" xlink:label="loc_ifrs-full_GrossCarryingAmountMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_GrossCarryingAmountMember" xml:lang="en-US">Gross carrying amount [member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_GrossCarryingAmountMember" xml:lang="en-US">Cost</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GrossCarryingAmountMember" xlink:to="lab_ifrs-full_GrossCarryingAmountMember" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_ResearchAndDevelopmentMember" xlink:label="loc_thtx_ResearchAndDevelopmentMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_ResearchAndDevelopmentMember" xml:lang="en-US">Research And Development [Member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_ResearchAndDevelopmentMember" xlink:to="lab_thtx_ResearchAndDevelopmentMember" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_AmortizationOfRightOfUseAsset" xlink:label="loc_thtx_AmortizationOfRightOfUseAsset" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_AmortizationOfRightOfUseAsset" xml:lang="en-US">Amortization of Right of use asset</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_AmortizationOfRightOfUseAsset" xml:lang="en-US">Amortization</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_AmortizationOfRightOfUseAsset" xlink:to="lab_thtx_AmortizationOfRightOfUseAsset" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_AmortizationOfRightOfUseAsset" xml:lang="en-US">Amortization of Right of use asset.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdditionsToRightofuseAssets" xlink:label="loc_ifrs-full_AdditionsToRightofuseAssets" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_AdditionsToRightofuseAssets" xml:lang="en-US">Additions to right-of-use assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_AdditionsToRightofuseAssets" xml:lang="en-US">New lease</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_AdditionsToRightofuseAssets" xml:lang="en-US">New lease</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdditionsToRightofuseAssets" xlink:to="lab_ifrs-full_AdditionsToRightofuseAssets" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_TerminationOfRightOfUseAssets" xlink:label="loc_thtx_TerminationOfRightOfUseAssets" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_TerminationOfRightOfUseAssets" xml:lang="en-US">Termination Of Right Of Use Assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_TerminationOfRightOfUseAssets" xml:lang="en-US">Termination</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_TerminationOfRightOfUseAssets" xlink:to="lab_thtx_TerminationOfRightOfUseAssets" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_TerminationOfRightOfUseAssets" xml:lang="en-US">Termination of right-of-use assets.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_AccumulatedAmortizationAbstract" xlink:label="loc_thtx_AccumulatedAmortizationAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_AccumulatedAmortizationAbstract" xml:lang="en-US">Accumulated Amortization [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_AccumulatedAmortizationAbstract" xml:lang="en-US">Accumulated amortization</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_AccumulatedAmortizationAbstract" xlink:to="lab_thtx_AccumulatedAmortizationAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_AccumulatedAmortizationAbstract" xml:lang="en-US">Accumulated amortization.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AmortisationIntangibleAssetsOtherThanGoodwill" xlink:label="loc_ifrs-full_AmortisationIntangibleAssetsOtherThanGoodwill" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_AmortisationIntangibleAssetsOtherThanGoodwill" xml:lang="en-US">Amortisation, intangible assets other than goodwill</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_AmortisationIntangibleAssetsOtherThanGoodwill" xml:lang="en-US">Amortization</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AmortisationIntangibleAssetsOtherThanGoodwill" xlink:to="lab_ifrs-full_AmortisationIntangibleAssetsOtherThanGoodwill" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsOtherThanGoodwillAccumulatedAmortization" xlink:label="loc_thtx_IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsOtherThanGoodwillAccumulatedAmortization" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsOtherThanGoodwillAccumulatedAmortization" xml:lang="en-US">Increase Decrease Through Net Exchange Differences Intangible Assets Other Than Goodwill Accumulated Amortization</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsOtherThanGoodwillAccumulatedAmortization" xml:lang="en-US">Effect of changes in exchange rate</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsOtherThanGoodwillAccumulatedAmortization" xlink:to="lab_thtx_IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsOtherThanGoodwillAccumulatedAmortization" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsOtherThanGoodwillAccumulatedAmortization" xml:lang="en-US">Increase decrease through net exchange differences intangible assets other than goodwill accumulated amortization.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_AccumulatedAmortizationOfIntangibleAssetsOtherThanGoodwill" xlink:label="loc_thtx_AccumulatedAmortizationOfIntangibleAssetsOtherThanGoodwill" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_AccumulatedAmortizationOfIntangibleAssetsOtherThanGoodwill" xml:lang="en-US">Accumulated Amortization Of Intangible Assets Other Than Goodwill</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_thtx_AccumulatedAmortizationOfIntangibleAssetsOtherThanGoodwill" xml:lang="en-US">Beginning balance</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_thtx_AccumulatedAmortizationOfIntangibleAssetsOtherThanGoodwill" xml:lang="en-US">Ending Balance</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_AccumulatedAmortizationOfIntangibleAssetsOtherThanGoodwill" xlink:to="lab_thtx_AccumulatedAmortizationOfIntangibleAssetsOtherThanGoodwill" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_AccumulatedAmortizationOfIntangibleAssetsOtherThanGoodwill" xml:lang="en-US">Accumulated Amortization Of Intangible Assets Other Than Goodwill.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_AccumulatedAmortizationDisposalsIntangibleAssetsOtherThanGoodwill" xlink:label="loc_thtx_AccumulatedAmortizationDisposalsIntangibleAssetsOtherThanGoodwill" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_AccumulatedAmortizationDisposalsIntangibleAssetsOtherThanGoodwill" xml:lang="en-US">Accumulated Amortization Disposals Intangible Assets Other Than Goodwill</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_AccumulatedAmortizationDisposalsIntangibleAssetsOtherThanGoodwill" xml:lang="en-US">Disposal</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_AccumulatedAmortizationDisposalsIntangibleAssetsOtherThanGoodwill" xlink:to="lab_thtx_AccumulatedAmortizationDisposalsIntangibleAssetsOtherThanGoodwill" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_AccumulatedAmortizationDisposalsIntangibleAssetsOtherThanGoodwill" xml:lang="en-US">Accumulated amortization disposals, intangible assets other than goodwill.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ReconciliationOfChangesInIntangibleAssetsOtherThanGoodwillAbstract" xlink:label="loc_ifrs-full_ReconciliationOfChangesInIntangibleAssetsOtherThanGoodwillAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ReconciliationOfChangesInIntangibleAssetsOtherThanGoodwillAbstract" xml:lang="en-US">Reconciliation of changes in intangible assets other than goodwill [abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_ReconciliationOfChangesInIntangibleAssetsOtherThanGoodwillAbstract" xml:lang="en-US">Cost</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ReconciliationOfChangesInIntangibleAssetsOtherThanGoodwillAbstract" xlink:to="lab_ifrs-full_ReconciliationOfChangesInIntangibleAssetsOtherThanGoodwillAbstract" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisposalsIntangibleAssetsOtherThanGoodwill" xlink:label="loc_ifrs-full_DisposalsIntangibleAssetsOtherThanGoodwill" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisposalsIntangibleAssetsOtherThanGoodwill" xml:lang="en-US">Disposals, intangible assets other than goodwill</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_ifrs-full_DisposalsIntangibleAssetsOtherThanGoodwill" xml:lang="en-US">Disposal</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisposalsIntangibleAssetsOtherThanGoodwill" xlink:to="lab_ifrs-full_DisposalsIntangibleAssetsOtherThanGoodwill" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AccumulatedDepreciationAmortisationAndImpairmentMember" xlink:label="loc_ifrs-full_AccumulatedDepreciationAmortisationAndImpairmentMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_AccumulatedDepreciationAmortisationAndImpairmentMember" xml:lang="en-US">Accumulated depreciation, amortisation and impairment [member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_AccumulatedDepreciationAmortisationAndImpairmentMember" xml:lang="en-US">Accumulated amortization</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AccumulatedDepreciationAmortisationAndImpairmentMember" xlink:to="lab_ifrs-full_AccumulatedDepreciationAmortisationAndImpairmentMember" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_NetCarryingAmountMember" xlink:label="loc_thtx_NetCarryingAmountMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_NetCarryingAmountMember" xml:lang="en-US">Net Carrying Amount [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_NetCarryingAmountMember" xml:lang="en-US">Net carrying amount</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_NetCarryingAmountMember" xlink:to="lab_thtx_NetCarryingAmountMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_NetCarryingAmountMember" xml:lang="en-US">Net Carrying Amount [Member].</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_CommercializationRightsTrogarzoNorthAmericaMember" xlink:label="loc_thtx_CommercializationRightsTrogarzoNorthAmericaMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_CommercializationRightsTrogarzoNorthAmericaMember" xml:lang="en-US">Commercialization Rights Trogarzo North America [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_CommercializationRightsTrogarzoNorthAmericaMember" xml:lang="en-US">Commercialization rights- Trogarzo&#174; North America</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_CommercializationRightsTrogarzoNorthAmericaMember" xml:lang="en-US">Commercialization rights- Trogarzo&#174; North American Territory</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_CommercializationRightsTrogarzoNorthAmericaMember" xlink:to="lab_thtx_CommercializationRightsTrogarzoNorthAmericaMember" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_CommercializationRightsTrogarzoEuropeMember" xlink:label="loc_thtx_CommercializationRightsTrogarzoEuropeMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_CommercializationRightsTrogarzoEuropeMember" xml:lang="en-US">Commercialization Rights Trogarzo Europe [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_CommercializationRightsTrogarzoEuropeMember" xml:lang="en-US">Commercialization rights- Trogarzo&#174; European Territory</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_CommercializationRightsTrogarzoEuropeMember" xlink:to="lab_thtx_CommercializationRightsTrogarzoEuropeMember" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_OncologyPlatformMember" xlink:label="loc_thtx_OncologyPlatformMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_OncologyPlatformMember" xml:lang="en-US">Oncology Platform [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_OncologyPlatformMember" xml:lang="en-US">Oncology Platform</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_OncologyPlatformMember" xlink:to="lab_thtx_OncologyPlatformMember" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_InitialMilestonePaymentsPayable" xlink:label="loc_thtx_InitialMilestonePaymentsPayable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_InitialMilestonePaymentsPayable" xml:lang="en-US">Initial Milestone Payments Payable</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_InitialMilestonePaymentsPayable" xml:lang="en-US">Initial Milestone Payments Payable</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_InitialMilestonePaymentsPayable" xml:lang="en-US">Initial payments</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_InitialMilestonePaymentsPayable" xlink:to="lab_thtx_InitialMilestonePaymentsPayable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_InitialMilestonePaymentsPayable" xml:lang="en-US">Initial Milestone Payments Payable.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_MilestoneAxis" xlink:label="loc_thtx_MilestoneAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_MilestoneAxis" xml:lang="en-US">Milestone [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_MilestoneAxis" xlink:to="lab_thtx_MilestoneAxis" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_MilestoneDomain" xlink:label="loc_thtx_MilestoneDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_MilestoneDomain" xml:lang="en-US">Milestone [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_MilestoneDomain" xlink:to="lab_thtx_MilestoneDomain" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_MilestoneFourMember" xlink:label="loc_thtx_MilestoneFourMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_MilestoneFourMember" xml:lang="en-US">Milestone Four [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_MilestoneFourMember" xml:lang="en-US">Upon first achieving annual net sales of US$ 200,000</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_MilestoneFourMember" xlink:to="lab_thtx_MilestoneFourMember" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_MilestoneFiveMember" xlink:label="loc_thtx_MilestoneFiveMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_MilestoneFiveMember" xml:lang="en-US">Milestone Five [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_MilestoneFiveMember" xml:lang="en-US">Upon first achieving annual net sales of US$ 500,000</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_MilestoneFiveMember" xlink:to="lab_thtx_MilestoneFiveMember" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_MilestoneSixMember" xlink:label="loc_thtx_MilestoneSixMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_MilestoneSixMember" xml:lang="en-US">Milestone Six [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_MilestoneSixMember" xml:lang="en-US">Upon first achieving annual net sales of US$ 1,000,000</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_MilestoneSixMember" xlink:to="lab_thtx_MilestoneSixMember" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_TypeOfArrangementsAxis" xlink:label="loc_thtx_TypeOfArrangementsAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_TypeOfArrangementsAxis" xml:lang="en-US">Type of arrangements [axis]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_TypeOfArrangementsAxis" xml:lang="en-US">Type of arrangements [axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_TypeOfArrangementsAxis" xlink:to="lab_thtx_TypeOfArrangementsAxis" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_TypeOfArrangementsMemberDomain" xlink:label="loc_thtx_TypeOfArrangementsMemberDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_TypeOfArrangementsMemberDomain" xml:lang="en-US">Type of arrangements Member [Domain]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_TypeOfArrangementsMemberDomain" xml:lang="en-US">Type of arrangements [domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_TypeOfArrangementsMemberDomain" xlink:to="lab_thtx_TypeOfArrangementsMemberDomain" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_IntangibleAssetsAgreementTermOfContract" xlink:label="loc_thtx_IntangibleAssetsAgreementTermOfContract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_IntangibleAssetsAgreementTermOfContract" xml:lang="en-US">Intangible Assets Agreement Term Of Contract</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_IntangibleAssetsAgreementTermOfContract" xml:lang="en-US">Intangible Assets Agreement Term</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_IntangibleAssetsAgreementTermOfContract" xlink:to="lab_thtx_IntangibleAssetsAgreementTermOfContract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_IntangibleAssetsAgreementTermOfContract" xml:lang="en-US">Intangible Assets Agreement Term Of Contract.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_PercentageOfPurchasePriceConsiderationOfIntangibleAssets" xlink:label="loc_thtx_PercentageOfPurchasePriceConsiderationOfIntangibleAssets" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_PercentageOfPurchasePriceConsiderationOfIntangibleAssets" xml:lang="en-US">Percentage Of Purchase Price Consideration Of Intangible Assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_PercentageOfPurchasePriceConsiderationOfIntangibleAssets" xml:lang="en-US">Intangible Asset Purchase Consideration</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_PercentageOfPurchasePriceConsiderationOfIntangibleAssets" xlink:to="lab_thtx_PercentageOfPurchasePriceConsiderationOfIntangibleAssets" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_PercentageOfPurchasePriceConsiderationOfIntangibleAssets" xml:lang="en-US">Percentage Of Purchase Price Consideration Of Intangible Assets.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AmortisationExpense" xlink:label="loc_ifrs-full_AmortisationExpense" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_AmortisationExpense" xml:lang="en-US">Amortisation expense</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_AmortisationExpense" xml:lang="en-US">Amortisation Expense</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AmortisationExpense" xlink:to="lab_ifrs-full_AmortisationExpense" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_PaymentOfUpfrontMilestones" xlink:label="loc_thtx_PaymentOfUpfrontMilestones" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_PaymentOfUpfrontMilestones" xml:lang="en-US">Payment Of Upfront Milestones</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_PaymentOfUpfrontMilestones" xml:lang="en-US">Upfront payment</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_PaymentOfUpfrontMilestones" xlink:to="lab_thtx_PaymentOfUpfrontMilestones" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_PaymentOfUpfrontMilestones" xml:lang="en-US">Payment Of Upfront Milestones.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NumberOfSharesIssued" xlink:label="loc_ifrs-full_NumberOfSharesIssued" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_NumberOfSharesIssued" xml:lang="en-US">Number of shares issued</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_NumberOfSharesIssued" xml:lang="en-US">Number of shares issued</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_NumberOfSharesIssued" xml:lang="en-US">Shares issued during the period</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NumberOfSharesIssued" xlink:to="lab_ifrs-full_NumberOfSharesIssued" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_AcquisitionCostsForIntangibleAssets" xlink:label="loc_thtx_AcquisitionCostsForIntangibleAssets" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_AcquisitionCostsForIntangibleAssets" xml:lang="en-US">Acquisition Costs For Intangible Assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_AcquisitionCostsForIntangibleAssets" xml:lang="en-US">Acquisition costs</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_AcquisitionCostsForIntangibleAssets" xlink:to="lab_thtx_AcquisitionCostsForIntangibleAssets" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_AcquisitionCostsForIntangibleAssets" xml:lang="en-US">Acquisition costs for intangible assets.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_LaunchMilestonePayable" xlink:label="loc_thtx_LaunchMilestonePayable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_LaunchMilestonePayable" xml:lang="en-US">Launch Milestone Payable</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_LaunchMilestonePayable" xml:lang="en-US">Launch milestone payable</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_LaunchMilestonePayable" xlink:to="lab_thtx_LaunchMilestonePayable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_LaunchMilestonePayable" xml:lang="en-US">Launch milestone payable
.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DevelopmentMilestonePayableAnnualInstallment" xlink:label="loc_thtx_DevelopmentMilestonePayableAnnualInstallment" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DevelopmentMilestonePayableAnnualInstallment" xml:lang="en-US">Development Milestone Payable Annual Installment</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_DevelopmentMilestonePayableAnnualInstallment" xml:lang="en-US">Milestone Payments annual installment</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DevelopmentMilestonePayableAnnualInstallment" xlink:to="lab_thtx_DevelopmentMilestonePayableAnnualInstallment" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DevelopmentMilestonePayableAnnualInstallment" xml:lang="en-US">Development milestone payable annual installment.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwillCashPayment" xlink:label="loc_thtx_AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwillCashPayment" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwillCashPayment" xml:lang="en-US">Additions Other Than Through Business Combinations Intangible Assets Other Than Goodwill Cash Payment</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwillCashPayment" xml:lang="en-US">Additions to intangibles Through cash payment</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwillCashPayment" xlink:to="lab_thtx_AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwillCashPayment" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwillCashPayment" xml:lang="en-US">Additions other than through business combinations intangible assets other than goodwill cash payment.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwillShareBasedPayment" xlink:label="loc_thtx_AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwillShareBasedPayment" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwillShareBasedPayment" xml:lang="en-US">Additions Other Than Through Business Combinations Intangible Assets Other Than Goodwill Share Based Payment</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwillShareBasedPayment" xml:lang="en-US">Additions to intangibles Through share based payment</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwillShareBasedPayment" xlink:to="lab_thtx_AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwillShareBasedPayment" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwillShareBasedPayment" xml:lang="en-US">Additions other than through business combinations intangible assets other than goodwill share based payment.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_MilestoneAmountPayable" xlink:label="loc_thtx_MilestoneAmountPayable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_MilestoneAmountPayable" xml:lang="en-US">Milestone Amount Payable</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_MilestoneAmountPayable" xml:lang="en-US">Milestone amount payable</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_MilestoneAmountPayable" xlink:to="lab_thtx_MilestoneAmountPayable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_MilestoneAmountPayable" xml:lang="en-US">Milestone amount payable.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ContingentConsiderationRecognisedAsOfAcquisitionDate" xlink:label="loc_ifrs-full_ContingentConsiderationRecognisedAsOfAcquisitionDate" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ContingentConsiderationRecognisedAsOfAcquisitionDate" xml:lang="en-US">Contingent consideration recognised as of acquisition date</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_ContingentConsiderationRecognisedAsOfAcquisitionDate" xml:lang="en-US">Business combination contingent consideration</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ContingentConsiderationRecognisedAsOfAcquisitionDate" xlink:to="lab_ifrs-full_ContingentConsiderationRecognisedAsOfAcquisitionDate" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AcquisitionsThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill" xlink:label="loc_ifrs-full_AcquisitionsThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_AcquisitionsThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill" xml:lang="en-US">Acquisitions through business combinations, intangible assets other than goodwill</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_AcquisitionsThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill" xml:lang="en-US">Acquisition of intangible assets during the year</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AcquisitionsThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill" xlink:to="lab_ifrs-full_AcquisitionsThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashTransferred" xlink:label="loc_ifrs-full_CashTransferred" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_CashTransferred" xml:lang="en-US">Cash transferred</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_CashTransferred" xml:lang="en-US">Business combination cash consideration transferred</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashTransferred" xlink:to="lab_ifrs-full_CashTransferred" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EquityInterestsOfAcquirer" xlink:label="loc_ifrs-full_EquityInterestsOfAcquirer" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_EquityInterestsOfAcquirer" xml:lang="en-US">Equity interests of acquirer</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_EquityInterestsOfAcquirer" xml:lang="en-US">Business combination shares value of consideration</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_EquityInterestsOfAcquirer" xlink:to="lab_ifrs-full_EquityInterestsOfAcquirer" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NumberOfInstrumentsOrInterestsIssuedOrIssuable" xlink:label="loc_ifrs-full_NumberOfInstrumentsOrInterestsIssuedOrIssuable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_NumberOfInstrumentsOrInterestsIssuedOrIssuable" xml:lang="en-US">Number of instruments or interests issued or issuable</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_NumberOfInstrumentsOrInterestsIssuedOrIssuable" xml:lang="en-US">Business combination number of shares issued</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NumberOfInstrumentsOrInterestsIssuedOrIssuable" xlink:to="lab_ifrs-full_NumberOfInstrumentsOrInterestsIssuedOrIssuable" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AcquisitionrelatedCostsForTransactionRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombination" xlink:label="loc_ifrs-full_AcquisitionrelatedCostsForTransactionRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombination" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_AcquisitionrelatedCostsForTransactionRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombination" xml:lang="en-US">Acquisition-related costs for transaction recognised separately from acquisition of assets and assumption of liabilities in business combination</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_AcquisitionrelatedCostsForTransactionRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombination" xml:lang="en-US">Business combination acquisition costs</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AcquisitionrelatedCostsForTransactionRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombination" xlink:to="lab_ifrs-full_AcquisitionrelatedCostsForTransactionRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombination" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_BusinessCombinationContingentConsiderationFairValue" xlink:label="loc_thtx_BusinessCombinationContingentConsiderationFairValue" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_BusinessCombinationContingentConsiderationFairValue" xml:lang="en-US">Business Combination Contingent Consideration Fair Value</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_BusinessCombinationContingentConsiderationFairValue" xml:lang="en-US">Business combination contingent consideration fair value</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_BusinessCombinationContingentConsiderationFairValue" xlink:to="lab_thtx_BusinessCombinationContingentConsiderationFairValue" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_BusinessCombinationContingentConsiderationFairValue" xml:lang="en-US">Business combination contingent consideration fair value.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_BusinessCombinationIncreaseDecreaseInPurchaseConsideration" xlink:label="loc_thtx_BusinessCombinationIncreaseDecreaseInPurchaseConsideration" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_BusinessCombinationIncreaseDecreaseInPurchaseConsideration" xml:lang="en-US">Business Combination Increase Decrease In Purchase Consideration</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_BusinessCombinationIncreaseDecreaseInPurchaseConsideration" xml:lang="en-US">Business combination adjustment to the purchase consideration</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_BusinessCombinationIncreaseDecreaseInPurchaseConsideration" xlink:to="lab_thtx_BusinessCombinationIncreaseDecreaseInPurchaseConsideration" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_BusinessCombinationIncreaseDecreaseInPurchaseConsideration" xml:lang="en-US">Business combination increase decrease in purchase consideration.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProceedsFromGovernmentGrantsClassifiedAsInvestingActivities" xlink:label="loc_ifrs-full_ProceedsFromGovernmentGrantsClassifiedAsInvestingActivities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ProceedsFromGovernmentGrantsClassifiedAsInvestingActivities" xml:lang="en-US">Proceeds from government grants, classified as investing activities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_ProceedsFromGovernmentGrantsClassifiedAsInvestingActivities" xml:lang="en-US">Subsidy or grants received</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProceedsFromGovernmentGrantsClassifiedAsInvestingActivities" xlink:to="lab_ifrs-full_ProceedsFromGovernmentGrantsClassifiedAsInvestingActivities" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FeeAndCommissionExpense" xlink:label="loc_ifrs-full_FeeAndCommissionExpense" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_FeeAndCommissionExpense" xml:lang="en-US">Fee and commission expense</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_FeeAndCommissionExpense" xml:lang="en-US">Annual maintenance fees</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FeeAndCommissionExpense" xlink:to="lab_ifrs-full_FeeAndCommissionExpense" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_RoyaltyFeesAsAPercentageOfRevenue" xlink:label="loc_thtx_RoyaltyFeesAsAPercentageOfRevenue" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_RoyaltyFeesAsAPercentageOfRevenue" xml:lang="en-US">Royalty Fees As A Percentage Of Revenue</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_RoyaltyFeesAsAPercentageOfRevenue" xml:lang="en-US">Royalty fees in percentage</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_RoyaltyFeesAsAPercentageOfRevenue" xlink:to="lab_thtx_RoyaltyFeesAsAPercentageOfRevenue" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_RoyaltyFeesAsAPercentageOfRevenue" xml:lang="en-US">Royalty fees as a percentage of revenue.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_RegulatoryMilestonePaymentPayable" xlink:label="loc_thtx_RegulatoryMilestonePaymentPayable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_RegulatoryMilestonePaymentPayable" xml:lang="en-US">Regulatory Milestone Payment Payable</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_RegulatoryMilestonePaymentPayable" xml:lang="en-US">Regulatory payable milestone related</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_RegulatoryMilestonePaymentPayable" xlink:to="lab_thtx_RegulatoryMilestonePaymentPayable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_RegulatoryMilestonePaymentPayable" xml:lang="en-US">Regulatory payable milestone related.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NumberOfSharesIssuedAndFullyPaid" xlink:label="loc_ifrs-full_NumberOfSharesIssuedAndFullyPaid" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_NumberOfSharesIssuedAndFullyPaid" xml:lang="en-US">Number of shares issued and fully paid</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_NumberOfSharesIssuedAndFullyPaid" xml:lang="en-US">Number of shares issued and fully paid</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NumberOfSharesIssuedAndFullyPaid" xlink:to="lab_ifrs-full_NumberOfSharesIssuedAndFullyPaid" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_ImpairmentOnResearchAndDevelopmentExpenses" xlink:label="loc_thtx_ImpairmentOnResearchAndDevelopmentExpenses" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_ImpairmentOnResearchAndDevelopmentExpenses" xml:lang="en-US">Impairment On Research And Development Expenses</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_ImpairmentOnResearchAndDevelopmentExpenses" xml:lang="en-US">Impairment On Research And Development Expenses</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_ImpairmentOnResearchAndDevelopmentExpenses" xlink:to="lab_thtx_ImpairmentOnResearchAndDevelopmentExpenses" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_ImpairmentOnResearchAndDevelopmentExpenses" xml:lang="en-US">Impairment on research and development expenses.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_RecoverableAmountOfCgu" xlink:label="loc_thtx_RecoverableAmountOfCgu" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_RecoverableAmountOfCgu" xml:lang="en-US">Recoverable Amount Of Cgu</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_RecoverableAmountOfCgu" xml:lang="en-US">Recoverable Amount Of Cgu</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_RecoverableAmountOfCgu" xlink:to="lab_thtx_RecoverableAmountOfCgu" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_RecoverableAmountOfCgu" xml:lang="en-US">Recoverable amount of Cgu.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_SecondMilestoneInstallmentPaymentsPayable" xlink:label="loc_thtx_SecondMilestoneInstallmentPaymentsPayable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_SecondMilestoneInstallmentPaymentsPayable" xml:lang="en-US">Second Milestone Installment Payments Payable</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_SecondMilestoneInstallmentPaymentsPayable" xml:lang="en-US">Second milestone installment</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_SecondMilestoneInstallmentPaymentsPayable" xlink:to="lab_thtx_SecondMilestoneInstallmentPaymentsPayable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_SecondMilestoneInstallmentPaymentsPayable" xml:lang="en-US">Second milestone installment payments payable.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_FirstMilestoneInstallmentPaymentsPayable" xlink:label="loc_thtx_FirstMilestoneInstallmentPaymentsPayable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_FirstMilestoneInstallmentPaymentsPayable" xml:lang="en-US">First Milestone Installment Payments Payable</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_FirstMilestoneInstallmentPaymentsPayable" xml:lang="en-US">First milestone installment</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_FirstMilestoneInstallmentPaymentsPayable" xlink:to="lab_thtx_FirstMilestoneInstallmentPaymentsPayable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_FirstMilestoneInstallmentPaymentsPayable" xml:lang="en-US">First milestone installment payments payable.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_InitialMilestonePaymentsPayableAggregateAnnualInstallments." xlink:label="loc_thtx_InitialMilestonePaymentsPayableAggregateAnnualInstallments." />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_InitialMilestonePaymentsPayableAggregateAnnualInstallments." xml:lang="en-US">Initial Milestone Payments Payable Aggregate Annual Installments.</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_InitialMilestonePaymentsPayableAggregateAnnualInstallments." xml:lang="en-US">Initial Milestone Payments Payable Aggregate Annual Installments.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_InitialMilestonePaymentsPayableAggregateAnnualInstallments." xlink:to="lab_thtx_InitialMilestonePaymentsPayableAggregateAnnualInstallments." />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_InitialMilestonePaymentsPayableAggregateAnnualInstallments." xml:lang="en-US">Initial milestone payments payable aggregate annual installments.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_TaimedAgreementMember" xlink:label="loc_thtx_TaimedAgreementMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_TaimedAgreementMember" xml:lang="en-US">Taimed Agreement [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_TaimedAgreementMember" xml:lang="en-US">Taimed Agreement</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_TaimedAgreementMember" xlink:to="lab_thtx_TaimedAgreementMember" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_LicenseAgreementTransferPlusLPMember" xlink:label="loc_thtx_LicenseAgreementTransferPlusLPMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_LicenseAgreementTransferPlusLPMember" xml:lang="en-US">License Agreement Transfer Plus L P [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_LicenseAgreementTransferPlusLPMember" xml:lang="en-US">License Agreement Transfer Plus L P</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_LicenseAgreementTransferPlusLPMember" xlink:to="lab_thtx_LicenseAgreementTransferPlusLPMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_LicenseAgreementTransferPlusLPMember" xml:lang="en-US">License agreement transfer plus L P.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfShareCapitalAxis" xlink:label="loc_ifrs-full_ClassesOfShareCapitalAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ClassesOfShareCapitalAxis" xml:lang="en-US">Classes of share capital [axis]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_ClassesOfShareCapitalAxis" xml:lang="en-US">Classes of share capital [axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfShareCapitalAxis" xlink:to="lab_ifrs-full_ClassesOfShareCapitalAxis" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfShareCapitalDomain" xlink:label="loc_ifrs-full_ClassesOfShareCapitalDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ClassesOfShareCapitalDomain" xml:lang="en-US">Classes of share capital [domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfShareCapitalDomain" xlink:to="lab_ifrs-full_ClassesOfShareCapitalDomain" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OrdinarySharesMember" xlink:label="loc_ifrs-full_OrdinarySharesMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_OrdinarySharesMember" xml:lang="en-US">Ordinary shares [member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_OrdinarySharesMember" xml:lang="en-US">Ordinary shares</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_OrdinarySharesMember" xml:lang="en-US">Ordinary shares [member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OrdinarySharesMember" xlink:to="lab_ifrs-full_OrdinarySharesMember" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_TrancheAxis" xlink:label="loc_thtx_TrancheAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_TrancheAxis" xml:lang="en-US">Tranche [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_TrancheAxis" xlink:to="lab_thtx_TrancheAxis" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_TrancheDomain" xlink:label="loc_thtx_TrancheDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_TrancheDomain" xml:lang="en-US">Tranche [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_TrancheDomain" xlink:to="lab_thtx_TrancheDomain" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_ScenariosAxis" xlink:label="loc_thtx_ScenariosAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_ScenariosAxis" xml:lang="en-US">Scenarios [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_ScenariosAxis" xlink:to="lab_thtx_ScenariosAxis" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_ScenariosDomain" xlink:label="loc_thtx_ScenariosDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_ScenariosDomain" xml:lang="en-US">Scenarios [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_ScenariosDomain" xlink:to="lab_thtx_ScenariosDomain" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_MilestoneOneMember" xlink:label="loc_thtx_MilestoneOneMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_MilestoneOneMember" xml:lang="en-US">Milestone One [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_MilestoneOneMember" xml:lang="en-US">Milestone One</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_MilestoneOneMember" xlink:to="lab_thtx_MilestoneOneMember" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_MilestonePhaseTwoLiveDemonstrationMember" xlink:label="loc_thtx_MilestonePhaseTwoLiveDemonstrationMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_MilestonePhaseTwoLiveDemonstrationMember" xml:lang="en-US">Milestone Phase Two Live Demonstration [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_MilestonePhaseTwoLiveDemonstrationMember" xml:lang="en-US">Milestone Phase Two Live Demonstration</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_MilestonePhaseTwoLiveDemonstrationMember" xlink:to="lab_thtx_MilestonePhaseTwoLiveDemonstrationMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_MilestonePhaseTwoLiveDemonstrationMember" xml:lang="en-US">Milestone phase two live demonstration.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DevelopmentMilestonePhaseOneClinicalTrialMember" xlink:label="loc_thtx_DevelopmentMilestonePhaseOneClinicalTrialMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DevelopmentMilestonePhaseOneClinicalTrialMember" xml:lang="en-US">Development Milestone Phase One Clinical Trial [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_DevelopmentMilestonePhaseOneClinicalTrialMember" xml:lang="en-US">Development Milestone Phase One Clinical Trial</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DevelopmentMilestonePhaseOneClinicalTrialMember" xlink:to="lab_thtx_DevelopmentMilestonePhaseOneClinicalTrialMember" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DevelopmentMilestonePhaseThreeClinicalTrialMember" xlink:label="loc_thtx_DevelopmentMilestonePhaseThreeClinicalTrialMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DevelopmentMilestonePhaseThreeClinicalTrialMember" xml:lang="en-US">Development Milestone Phase Three Clinical Trial [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_DevelopmentMilestonePhaseThreeClinicalTrialMember" xml:lang="en-US">Development Milestone Phase Three Clinical Trial</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DevelopmentMilestonePhaseThreeClinicalTrialMember" xlink:to="lab_thtx_DevelopmentMilestonePhaseThreeClinicalTrialMember" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_TrogarzoMember" xlink:label="loc_thtx_TrogarzoMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_TrogarzoMember" xml:lang="en-US">Trogarzo [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_TrogarzoMember" xml:lang="en-US">Trogarzo&#174;</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_TrogarzoMember" xlink:to="lab_thtx_TrogarzoMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_TrogarzoMember" xml:lang="en-US">Trogarzo</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BusinessCombinationsAxis" xlink:label="loc_ifrs-full_BusinessCombinationsAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_BusinessCombinationsAxis" xml:lang="en-US">Business combinations [axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_BusinessCombinationsAxis" xlink:to="lab_ifrs-full_BusinessCombinationsAxis" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BusinessCombinationsDomain" xlink:label="loc_ifrs-full_BusinessCombinationsDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_BusinessCombinationsDomain" xml:lang="en-US">Business combinations [domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_BusinessCombinationsDomain" xlink:to="lab_ifrs-full_BusinessCombinationsDomain" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_KatanaMember" xlink:label="loc_thtx_KatanaMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_KatanaMember" xml:lang="en-US">Katana</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_KatanaMember" xml:lang="en-US">Katana [member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_KatanaMember" xlink:to="lab_thtx_KatanaMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_KatanaMember" xml:lang="en-US">Katana.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_KatanaAmendmentAgreementMember" xlink:label="loc_thtx_KatanaAmendmentAgreementMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_KatanaAmendmentAgreementMember" xml:lang="en-US">Katana Amendment Agreement [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_KatanaAmendmentAgreementMember" xml:lang="en-US">Katana Amendment Agreement</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_KatanaAmendmentAgreementMember" xlink:to="lab_thtx_KatanaAmendmentAgreementMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_KatanaAmendmentAgreementMember" xml:lang="en-US">Katana amendment agreement.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_BusinessCombinationAdjustmentToPurchaseConsiderationAxis" xlink:label="loc_thtx_BusinessCombinationAdjustmentToPurchaseConsiderationAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_BusinessCombinationAdjustmentToPurchaseConsiderationAxis" xml:lang="en-US">Business Combination Adjustment To Purchase Consideration [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_BusinessCombinationAdjustmentToPurchaseConsiderationAxis" xlink:to="lab_thtx_BusinessCombinationAdjustmentToPurchaseConsiderationAxis" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_BusinessCombinationAdjustmentToPurchaseConsiderationMember" xlink:label="loc_thtx_BusinessCombinationAdjustmentToPurchaseConsiderationMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_BusinessCombinationAdjustmentToPurchaseConsiderationMember" xml:lang="en-US">Business Combination Adjustment To Purchase Consideration [Member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_BusinessCombinationAdjustmentToPurchaseConsiderationMember" xlink:to="lab_thtx_BusinessCombinationAdjustmentToPurchaseConsiderationMember" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_BusinessCombinationAdjustmentToConsiderationInstallmentOneMember" xlink:label="loc_thtx_BusinessCombinationAdjustmentToConsiderationInstallmentOneMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_BusinessCombinationAdjustmentToConsiderationInstallmentOneMember" xml:lang="en-US">Business Combination Adjustment To Consideration Installment One [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_BusinessCombinationAdjustmentToConsiderationInstallmentOneMember" xml:lang="en-US">Business Combination Adjustment To Consideration Installment One</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_BusinessCombinationAdjustmentToConsiderationInstallmentOneMember" xlink:to="lab_thtx_BusinessCombinationAdjustmentToConsiderationInstallmentOneMember" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_BusinessCombinationAdjustmentToConsiderationInstallmentTwoMember" xlink:label="loc_thtx_BusinessCombinationAdjustmentToConsiderationInstallmentTwoMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_BusinessCombinationAdjustmentToConsiderationInstallmentTwoMember" xml:lang="en-US">Business Combination Adjustment To Consideration Installment Two [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_BusinessCombinationAdjustmentToConsiderationInstallmentTwoMember" xml:lang="en-US">Business Combination Adjustment To Consideration Installment Two</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_BusinessCombinationAdjustmentToConsiderationInstallmentTwoMember" xlink:to="lab_thtx_BusinessCombinationAdjustmentToConsiderationInstallmentTwoMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_BusinessCombinationAdjustmentToConsiderationInstallmentTwoMember" xml:lang="en-US">Business combination adjustment to consideration installment two.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_NatureOfFeesAxis" xlink:label="loc_thtx_NatureOfFeesAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_NatureOfFeesAxis" xml:lang="en-US">Nature of Fees [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_NatureOfFeesAxis" xlink:to="lab_thtx_NatureOfFeesAxis" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_NatureOfFeesMember" xlink:label="loc_thtx_NatureOfFeesMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_NatureOfFeesMember" xml:lang="en-US">Nature of Fees [Member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_NatureOfFeesMember" xlink:to="lab_thtx_NatureOfFeesMember" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_RoyaltyRelatedLicensePeptidesMember" xlink:label="loc_thtx_RoyaltyRelatedLicensePeptidesMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_RoyaltyRelatedLicensePeptidesMember" xml:lang="en-US">Royalty Related License Peptides [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_RoyaltyRelatedLicensePeptidesMember" xml:lang="en-US">Royalty Related License Peptides</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_RoyaltyRelatedLicensePeptidesMember" xlink:to="lab_thtx_RoyaltyRelatedLicensePeptidesMember" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_FeesPeriodAxis" xlink:label="loc_thtx_FeesPeriodAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_FeesPeriodAxis" xml:lang="en-US">Fees Period [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_FeesPeriodAxis" xlink:to="lab_thtx_FeesPeriodAxis" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_FeesPeriodMember" xlink:label="loc_thtx_FeesPeriodMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_FeesPeriodMember" xml:lang="en-US">Fees Period [Member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_FeesPeriodMember" xlink:to="lab_thtx_FeesPeriodMember" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_FirstFiveYearsMember" xlink:label="loc_thtx_FirstFiveYearsMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_FirstFiveYearsMember" xml:lang="en-US">First Five Years [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_FirstFiveYearsMember" xml:lang="en-US">First Five Years</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_FirstFiveYearsMember" xlink:to="lab_thtx_FirstFiveYearsMember" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_AfterFiveYearsMember" xlink:label="loc_thtx_AfterFiveYearsMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_AfterFiveYearsMember" xml:lang="en-US">After Five Years [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_AfterFiveYearsMember" xml:lang="en-US">After Five Years</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_AfterFiveYearsMember" xlink:to="lab_thtx_AfterFiveYearsMember" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_BasisOfRoyaltyPaymentAxis" xlink:label="loc_thtx_BasisOfRoyaltyPaymentAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_BasisOfRoyaltyPaymentAxis" xml:lang="en-US">Basis Of Royalty Payment [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_BasisOfRoyaltyPaymentAxis" xlink:to="lab_thtx_BasisOfRoyaltyPaymentAxis" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_BasisOfRoyaltyPaymentMember" xlink:label="loc_thtx_BasisOfRoyaltyPaymentMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_BasisOfRoyaltyPaymentMember" xml:lang="en-US">Basis Of Royalty Payment [Member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_BasisOfRoyaltyPaymentMember" xlink:to="lab_thtx_BasisOfRoyaltyPaymentMember" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_NetSalesBasisMember" xlink:label="loc_thtx_NetSalesBasisMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_NetSalesBasisMember" xml:lang="en-US">Net Sales Basis [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_NetSalesBasisMember" xml:lang="en-US">Net Sales Basis</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_NetSalesBasisMember" xlink:to="lab_thtx_NetSalesBasisMember" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_RoyaltyRevenueSublicenseBasisMember" xlink:label="loc_thtx_RoyaltyRevenueSublicenseBasisMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_RoyaltyRevenueSublicenseBasisMember" xml:lang="en-US">Royalty Revenue Sublicense Basis [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_RoyaltyRevenueSublicenseBasisMember" xml:lang="en-US">Royalty Revenue Sublicense Basis</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_RoyaltyRevenueSublicenseBasisMember" xlink:to="lab_thtx_RoyaltyRevenueSublicenseBasisMember" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_TradeAndOtherPayablesTable" xlink:label="loc_thtx_TradeAndOtherPayablesTable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_TradeAndOtherPayablesTable" xml:lang="en-US">Trade And Other Payables [Table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_TradeAndOtherPayablesTable" xlink:to="lab_thtx_TradeAndOtherPayablesTable" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_TradeAndOtherPayablesLineItems" xlink:label="loc_thtx_TradeAndOtherPayablesLineItems" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_TradeAndOtherPayablesLineItems" xml:lang="en-US">Trade And Other Payables [Line Items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_TradeAndOtherPayablesLineItems" xlink:to="lab_thtx_TradeAndOtherPayablesLineItems" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TradeAndOtherCurrentPayablesToTradeSuppliers" xlink:label="loc_ifrs-full_TradeAndOtherCurrentPayablesToTradeSuppliers" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_TradeAndOtherCurrentPayablesToTradeSuppliers" xml:lang="en-US">Current trade payables</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_TradeAndOtherCurrentPayablesToTradeSuppliers" xml:lang="en-US">Trade payables</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TradeAndOtherCurrentPayablesToTradeSuppliers" xlink:to="lab_ifrs-full_TradeAndOtherCurrentPayablesToTradeSuppliers" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentAccruedExpensesAndOtherCurrentLiabilities" xlink:label="loc_ifrs-full_CurrentAccruedExpensesAndOtherCurrentLiabilities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_CurrentAccruedExpensesAndOtherCurrentLiabilities" xml:lang="en-US">Current accrued expenses and other current liabilities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_CurrentAccruedExpensesAndOtherCurrentLiabilities" xml:lang="en-US">Accrued liabilities and other payables</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentAccruedExpensesAndOtherCurrentLiabilities" xlink:to="lab_ifrs-full_CurrentAccruedExpensesAndOtherCurrentLiabilities" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AmountsPayableRelatedPartyTransactions" xlink:label="loc_ifrs-full_AmountsPayableRelatedPartyTransactions" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_AmountsPayableRelatedPartyTransactions" xml:lang="en-US">Amounts payable, related party transactions</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_AmountsPayableRelatedPartyTransactions" xml:lang="en-US">Salaries and benefits due to key management personnel</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AmountsPayableRelatedPartyTransactions" xlink:to="lab_ifrs-full_AmountsPayableRelatedPartyTransactions" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ShorttermEmployeeBenefitsAccruals" xlink:label="loc_ifrs-full_ShorttermEmployeeBenefitsAccruals" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ShorttermEmployeeBenefitsAccruals" xml:lang="en-US">Short-term employee benefits accruals</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_ShorttermEmployeeBenefitsAccruals" xml:lang="en-US">Employee salaries and benefits payable</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ShorttermEmployeeBenefitsAccruals" xlink:to="lab_ifrs-full_ShorttermEmployeeBenefitsAccruals" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LiabilitiesFromSharebasedPaymentTransactions2011" xlink:label="loc_ifrs-full_LiabilitiesFromSharebasedPaymentTransactions2011" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_LiabilitiesFromSharebasedPaymentTransactions2011" xml:lang="en-US">Liabilities from share-based payment transactions</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_LiabilitiesFromSharebasedPaymentTransactions2011" xml:lang="en-US">Liability related to deferred stock unit plan</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_LiabilitiesFromSharebasedPaymentTransactions2011" xml:lang="en-US">Deferred stock liability</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LiabilitiesFromSharebasedPaymentTransactions2011" xlink:to="lab_ifrs-full_LiabilitiesFromSharebasedPaymentTransactions2011" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentInterestPayable" xlink:label="loc_ifrs-full_CurrentInterestPayable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_CurrentInterestPayable" xml:lang="en-US">Current interest payable</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_CurrentInterestPayable" xml:lang="en-US">Accrued interest payable long-term debt</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentInterestPayable" xlink:to="lab_ifrs-full_CurrentInterestPayable" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherCurrentPayables" xlink:label="loc_ifrs-full_OtherCurrentPayables" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_OtherCurrentPayables" xml:lang="en-US">Other current payables</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_OtherCurrentPayables" xml:lang="en-US">TaiMed milestone</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherCurrentPayables" xlink:to="lab_ifrs-full_OtherCurrentPayables" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_PaymentForContingentLiabilities" xlink:label="loc_thtx_PaymentForContingentLiabilities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_PaymentForContingentLiabilities" xml:lang="en-US">Payment for Contingent liabilities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_PaymentForContingentLiabilities" xml:lang="en-US">Payment for Contingent liabilities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_PaymentForContingentLiabilities" xlink:to="lab_thtx_PaymentForContingentLiabilities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_PaymentForContingentLiabilities" xml:lang="en-US">Payment for Contingent liabilities.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_EqualAnnualInstallments" xlink:label="loc_thtx_EqualAnnualInstallments" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_EqualAnnualInstallments" xml:lang="en-US">Equal Annual Installments</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_EqualAnnualInstallments" xml:lang="en-US">Equal annual installments</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_EqualAnnualInstallments" xlink:to="lab_thtx_EqualAnnualInstallments" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_EqualAnnualInstallments" xml:lang="en-US">Equal annual installments.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_PaymentOfMilestones" xlink:label="loc_thtx_PaymentOfMilestones" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_PaymentOfMilestones" xml:lang="en-US">Payment Of Milestones</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_PaymentOfMilestones" xml:lang="en-US">Payment of milestones</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_PaymentOfMilestones" xlink:to="lab_thtx_PaymentOfMilestones" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_PaymentOfMilestones" xml:lang="en-US">Payment of milestones.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfOtherProvisionsTable" xlink:label="loc_ifrs-full_DisclosureOfOtherProvisionsTable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfOtherProvisionsTable" xml:lang="en-US">Disclosure of other provisions [table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfOtherProvisionsTable" xlink:to="lab_ifrs-full_DisclosureOfOtherProvisionsTable" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfProvisionsAxis" xlink:label="loc_ifrs-full_ClassesOfProvisionsAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ClassesOfProvisionsAxis" xml:lang="en-US">Classes of other provisions [axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfProvisionsAxis" xlink:to="lab_ifrs-full_ClassesOfProvisionsAxis" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfOtherProvisionsDomain" xlink:label="loc_ifrs-full_ClassesOfOtherProvisionsDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ClassesOfOtherProvisionsDomain" xml:lang="en-US">Classes of other provisions [domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfOtherProvisionsDomain" xlink:to="lab_ifrs-full_ClassesOfOtherProvisionsDomain" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RefundsProvisionMember" xlink:label="loc_ifrs-full_RefundsProvisionMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_RefundsProvisionMember" xml:lang="en-US">Refunds provision [member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_RefundsProvisionMember" xml:lang="en-US">Returns</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RefundsProvisionMember" xlink:to="lab_ifrs-full_RefundsProvisionMember" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_ChargebacksMember" xlink:label="loc_thtx_ChargebacksMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_ChargebacksMember" xml:lang="en-US">Chargebacks [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_ChargebacksMember" xml:lang="en-US">Chargebacks</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_ChargebacksMember" xlink:to="lab_thtx_ChargebacksMember" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_OtherAdditionalProvisionMember" xlink:label="loc_thtx_OtherAdditionalProvisionMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_OtherAdditionalProvisionMember" xml:lang="en-US">Other Additional Provision [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_OtherAdditionalProvisionMember" xml:lang="en-US">Other</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_OtherAdditionalProvisionMember" xlink:to="lab_thtx_OtherAdditionalProvisionMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_OtherAdditionalProvisionMember" xml:lang="en-US">Other additional provision.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_RebatesMember" xlink:label="loc_thtx_RebatesMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_RebatesMember" xml:lang="en-US">Rebates [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_RebatesMember" xml:lang="en-US">Rebates</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_RebatesMember" xlink:to="lab_thtx_RebatesMember" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfOtherProvisionsLineItems" xlink:label="loc_ifrs-full_DisclosureOfOtherProvisionsLineItems" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfOtherProvisionsLineItems" xml:lang="en-US">Disclosure of other provisions [line items]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DisclosureOfOtherProvisionsLineItems" xml:lang="en-US">Disclosure of other provisions [line items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfOtherProvisionsLineItems" xlink:to="lab_ifrs-full_DisclosureOfOtherProvisionsLineItems" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdditionalProvisionsOtherProvisions" xlink:label="loc_ifrs-full_AdditionalProvisionsOtherProvisions" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_AdditionalProvisionsOtherProvisions" xml:lang="en-US">Additional provisions, other provisions</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_AdditionalProvisionsOtherProvisions" xml:lang="en-US">Provisions made</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdditionalProvisionsOtherProvisions" xlink:to="lab_ifrs-full_AdditionalProvisionsOtherProvisions" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProvisionUsedOtherProvisions" xlink:label="loc_ifrs-full_ProvisionUsedOtherProvisions" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ProvisionUsedOtherProvisions" xml:lang="en-US">Provision used, other provisions</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_ifrs-full_ProvisionUsedOtherProvisions" xml:lang="en-US">Provisions used</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProvisionUsedOtherProvisions" xlink:to="lab_ifrs-full_ProvisionUsedOtherProvisions" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions" xml:lang="en-US">Increase (decrease) through net exchange differences, other provisions</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions" xml:lang="en-US">Effect of change in exchange rate</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions" xlink:to="lab_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TypesOfRateregulatedActivitiesAxis" xlink:label="loc_ifrs-full_TypesOfRateregulatedActivitiesAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_TypesOfRateregulatedActivitiesAxis" xml:lang="en-US">Types of rate-regulated activities [axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TypesOfRateregulatedActivitiesAxis" xlink:to="lab_ifrs-full_TypesOfRateregulatedActivitiesAxis" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TypesOfRateregulatedActivitiesDomain" xlink:label="loc_ifrs-full_TypesOfRateregulatedActivitiesDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_TypesOfRateregulatedActivitiesDomain" xml:lang="en-US">Types of rate-regulated activities [domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TypesOfRateregulatedActivitiesDomain" xlink:to="lab_ifrs-full_TypesOfRateregulatedActivitiesDomain" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_OncologyResearchActivitiesMember" xlink:label="loc_thtx_OncologyResearchActivitiesMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_OncologyResearchActivitiesMember" xml:lang="en-US">Oncology Research Activities [Member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_OncologyResearchActivitiesMember" xlink:to="lab_thtx_OncologyResearchActivitiesMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_OncologyResearchActivitiesMember" xml:lang="en-US">Oncology research activities.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AttributionOfExpensesByNatureToTheirFunctionAxis" xlink:label="loc_ifrs-full_AttributionOfExpensesByNatureToTheirFunctionAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_AttributionOfExpensesByNatureToTheirFunctionAxis" xml:lang="en-US">Attribution of expenses by nature to their function [axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AttributionOfExpensesByNatureToTheirFunctionAxis" xlink:to="lab_ifrs-full_AttributionOfExpensesByNatureToTheirFunctionAxis" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AttributionOfExpensesByNatureToTheirFunctionDomain" xlink:label="loc_ifrs-full_AttributionOfExpensesByNatureToTheirFunctionDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_AttributionOfExpensesByNatureToTheirFunctionDomain" xml:lang="en-US">Attribution of expenses by nature to their function [domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AttributionOfExpensesByNatureToTheirFunctionDomain" xlink:to="lab_ifrs-full_AttributionOfExpensesByNatureToTheirFunctionDomain" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_SeveranceAndOtherExpensesMember" xlink:label="loc_thtx_SeveranceAndOtherExpensesMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_SeveranceAndOtherExpensesMember" xml:lang="en-US">Severance And Other Expenses [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_SeveranceAndOtherExpensesMember" xml:lang="en-US">Severance And Other Expenses [Member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_SeveranceAndOtherExpensesMember" xlink:to="lab_thtx_SeveranceAndOtherExpensesMember" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_GeneralAndAdministrativeExpensesMember" xlink:label="loc_thtx_GeneralAndAdministrativeExpensesMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_GeneralAndAdministrativeExpensesMember" xml:lang="en-US">General and Administrative Expenses [Member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_GeneralAndAdministrativeExpensesMember" xlink:to="lab_thtx_GeneralAndAdministrativeExpensesMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_GeneralAndAdministrativeExpensesMember" xml:lang="en-US">General and Administrative Expenses.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_SellingAndMarketingExpensesMember" xlink:label="loc_thtx_SellingAndMarketingExpensesMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_SellingAndMarketingExpensesMember" xml:lang="en-US">Selling and Marketing Expenses [Member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_SellingAndMarketingExpensesMember" xlink:to="lab_thtx_SellingAndMarketingExpensesMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_SellingAndMarketingExpensesMember" xml:lang="en-US">Selling and Marketing Expenses.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_ResearchAndDevelopmentExpensesMember" xlink:label="loc_thtx_ResearchAndDevelopmentExpensesMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_ResearchAndDevelopmentExpensesMember" xml:lang="en-US">Research And Development Expenses [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_ResearchAndDevelopmentExpensesMember" xml:lang="en-US">Research And Development Expenses [Member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_ResearchAndDevelopmentExpensesMember" xlink:to="lab_thtx_ResearchAndDevelopmentExpensesMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_ResearchAndDevelopmentExpensesMember" xml:lang="en-US">Research And Development Expenses Member.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsTable" xlink:label="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsTable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsTable" xml:lang="en-US">Disclosure of detailed information about borrowings [table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsTable" xlink:to="lab_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsTable" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_BorrowingsByTypeAxis" xlink:label="loc_thtx_BorrowingsByTypeAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_BorrowingsByTypeAxis" xml:lang="en-US">Borrowings By Type [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_BorrowingsByTypeAxis" xlink:to="lab_thtx_BorrowingsByTypeAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_BorrowingsByTypeAxis" xml:lang="en-US">Borrowings by type.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_BorrowingsByTypeDomain" xlink:label="loc_thtx_BorrowingsByTypeDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_BorrowingsByTypeDomain" xml:lang="en-US">Borrowings By Type [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_BorrowingsByTypeDomain" xlink:to="lab_thtx_BorrowingsByTypeDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_BorrowingsByTypeDomain" xml:lang="en-US">Borrowings by type.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_IqTermLoanMember" xlink:label="loc_thtx_IqTermLoanMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_IqTermLoanMember" xml:lang="en-US">IQ Term Loan [Member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_IqTermLoanMember" xlink:to="lab_thtx_IqTermLoanMember" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_IqSubordinatedLoanMember" xlink:label="loc_thtx_IqSubordinatedLoanMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_IqSubordinatedLoanMember" xml:lang="en-US">IQ Subordinated Loan [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_IqSubordinatedLoanMember" xml:lang="en-US">IQ Subordinated Loan [Member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_IqSubordinatedLoanMember" xlink:to="lab_thtx_IqSubordinatedLoanMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_IqSubordinatedLoanMember" xml:lang="en-US">IQ subordinated loan.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_InvestissementQuebecMember" xlink:label="loc_thtx_InvestissementQuebecMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_InvestissementQuebecMember" xml:lang="en-US">Investissement Quebec [Member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_InvestissementQuebecMember" xlink:to="lab_thtx_InvestissementQuebecMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_InvestissementQuebecMember" xml:lang="en-US">Investissement quebec.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_TdTermLoanMember" xlink:label="loc_thtx_TdTermLoanMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_TdTermLoanMember" xml:lang="en-US">Td Term Loan [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_TdTermLoanMember" xml:lang="en-US">Td Term Loan [Member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_TdTermLoanMember" xlink:to="lab_thtx_TdTermLoanMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_TdTermLoanMember" xml:lang="en-US">Td term loan</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_TdRevolverMember" xlink:label="loc_thtx_TdRevolverMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_TdRevolverMember" xml:lang="en-US">TD Revolver [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_TdRevolverMember" xml:lang="en-US">TD Revolver [Member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_TdRevolverMember" xlink:to="lab_thtx_TdRevolverMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_TdRevolverMember" xml:lang="en-US">TD revolver.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_MarathonTermLoanMember" xlink:label="loc_thtx_MarathonTermLoanMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_MarathonTermLoanMember" xml:lang="en-US">Marathon Term Loan [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_MarathonTermLoanMember" xml:lang="en-US">Marathon Term Loan [Member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_MarathonTermLoanMember" xlink:to="lab_thtx_MarathonTermLoanMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_MarathonTermLoanMember" xml:lang="en-US">Marathon term loan</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_FifthAmendmentMember" xlink:label="loc_thtx_FifthAmendmentMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_FifthAmendmentMember" xml:lang="en-US">Fifth Amendment [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_FifthAmendmentMember" xml:lang="en-US">Fifth Amendment [member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_FifthAmendmentMember" xlink:to="lab_thtx_FifthAmendmentMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_FifthAmendmentMember" xml:lang="en-US">Fifth amendment member.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_CashCashEquivalentsAndEligibleShortTermInvestmentsMember" xlink:label="loc_thtx_CashCashEquivalentsAndEligibleShortTermInvestmentsMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_CashCashEquivalentsAndEligibleShortTermInvestmentsMember" xml:lang="en-US">Cash Cash Equivalents And Eligible Short Term Investments [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_CashCashEquivalentsAndEligibleShortTermInvestmentsMember" xml:lang="en-US">Cash, Cash Equivalents and Eligible Short-term Investments [member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_CashCashEquivalentsAndEligibleShortTermInvestmentsMember" xlink:to="lab_thtx_CashCashEquivalentsAndEligibleShortTermInvestmentsMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_CashCashEquivalentsAndEligibleShortTermInvestmentsMember" xml:lang="en-US">Cash, cash equivalents and eligible short-term investments.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BorrowingsByNameAxis" xlink:label="loc_ifrs-full_BorrowingsByNameAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_BorrowingsByNameAxis" xml:lang="en-US">Borrowings by name [axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_BorrowingsByNameAxis" xlink:to="lab_ifrs-full_BorrowingsByNameAxis" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BorrowingsByNameDomain" xlink:label="loc_ifrs-full_BorrowingsByNameDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_BorrowingsByNameDomain" xml:lang="en-US">Borrowings by name [domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_BorrowingsByNameDomain" xlink:to="lab_ifrs-full_BorrowingsByNameDomain" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_LoanFacilityTranche1LoanMember" xlink:label="loc_thtx_LoanFacilityTranche1LoanMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_LoanFacilityTranche1LoanMember" xml:lang="en-US">Loan Facility Tranche 1 Loan [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_LoanFacilityTranche1LoanMember" xml:lang="en-US">Loan Facility Tranche 1 Loan [Member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_LoanFacilityTranche1LoanMember" xlink:to="lab_thtx_LoanFacilityTranche1LoanMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_LoanFacilityTranche1LoanMember" xml:lang="en-US">Loan facility tranche 1 loan.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_LoanFacilityMember" xlink:label="loc_thtx_LoanFacilityMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_LoanFacilityMember" xml:lang="en-US">Loan Facility [Member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_LoanFacilityMember" xlink:to="lab_thtx_LoanFacilityMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_LoanFacilityMember" xml:lang="en-US">Loan facility.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_LoanFacilityTranche1And2LoanMember" xlink:label="loc_thtx_LoanFacilityTranche1And2LoanMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_LoanFacilityTranche1And2LoanMember" xml:lang="en-US">Loan Facility Tranche 1 and 2 Loan [Member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_LoanFacilityTranche1And2LoanMember" xlink:to="lab_thtx_LoanFacilityTranche1And2LoanMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_LoanFacilityTranche1And2LoanMember" xml:lang="en-US">Loan facility tranche 1 and 2 loan.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_LoanFacilityTranche4LoanMember" xlink:label="loc_thtx_LoanFacilityTranche4LoanMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_LoanFacilityTranche4LoanMember" xml:lang="en-US">Loan Facility Tranche 4 Loan [Member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_LoanFacilityTranche4LoanMember" xlink:to="lab_thtx_LoanFacilityTranche4LoanMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_LoanFacilityTranche4LoanMember" xml:lang="en-US">Loan facility tranche 4 loan.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_LoanFacilityTranche3LoanMember" xlink:label="loc_thtx_LoanFacilityTranche3LoanMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_LoanFacilityTranche3LoanMember" xml:lang="en-US">Loan Facility Tranche 3 Loan [Member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_LoanFacilityTranche3LoanMember" xlink:to="lab_thtx_LoanFacilityTranche3LoanMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_LoanFacilityTranche3LoanMember" xml:lang="en-US">Loan facility tranche 3 loan.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_LoanFacilityTranche2LoanMember" xlink:label="loc_thtx_LoanFacilityTranche2LoanMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_LoanFacilityTranche2LoanMember" xml:lang="en-US">Loan Facility Tranche 2 Loan [Member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_LoanFacilityTranche2LoanMember" xlink:to="lab_thtx_LoanFacilityTranche2LoanMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_LoanFacilityTranche2LoanMember" xml:lang="en-US">Loan facility tranche 2 loan.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems" xlink:label="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems" xml:lang="en-US">Disclosure of detailed information about borrowings [line items]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems" xml:lang="en-US">Disclosure of detailed information about noncurrent borrowings [line items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems" xlink:to="lab_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_CashPaidOnRepayment" xlink:label="loc_thtx_CashPaidOnRepayment" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_CashPaidOnRepayment" xml:lang="en-US">Cash Paid On Repayment</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_CashPaidOnRepayment" xml:lang="en-US">Cash paid on repayment</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_CashPaidOnRepayment" xlink:to="lab_thtx_CashPaidOnRepayment" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_CashPaidOnRepayment" xml:lang="en-US">Cash Paid On Repayment.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_RepaymentOfTermLoan" xlink:label="loc_thtx_RepaymentOfTermLoan" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_RepaymentOfTermLoan" xml:lang="en-US">Repayment Of Term Loan</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_RepaymentOfTermLoan" xml:lang="en-US">Repayment Of Term Loan</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_RepaymentOfTermLoan" xlink:to="lab_thtx_RepaymentOfTermLoan" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_RepaymentOfTermLoan" xml:lang="en-US">Repayment Of Term Loan.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfessionalFeesExpense" xlink:label="loc_ifrs-full_ProfessionalFeesExpense" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ProfessionalFeesExpense" xml:lang="en-US">Professional fees expense</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProfessionalFeesExpense" xlink:to="lab_ifrs-full_ProfessionalFeesExpense" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_PaymentsForPrincipalDebtCosts" xlink:label="loc_thtx_PaymentsForPrincipalDebtCosts" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_PaymentsForPrincipalDebtCosts" xml:lang="en-US">Payments For Principal Debt Costs</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_PaymentsForPrincipalDebtCosts" xml:lang="en-US">Payments For Principal Debt Costs</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_PaymentsForPrincipalDebtCosts" xlink:to="lab_thtx_PaymentsForPrincipalDebtCosts" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_PaymentsForPrincipalDebtCosts" xml:lang="en-US">Payments For Principal Debt Costs.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Borrowings" xlink:label="loc_ifrs-full_Borrowings" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_Borrowings" xml:lang="en-US">Borrowings</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_Borrowings" xml:lang="en-US">Borrowings</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_Borrowings" xlink:to="lab_ifrs-full_Borrowings" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BorrowingsMaturity" xlink:label="loc_ifrs-full_BorrowingsMaturity" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_BorrowingsMaturity" xml:lang="en-US">Borrowings, maturity</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_BorrowingsMaturity" xml:lang="en-US">Borrowings, maturity</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_BorrowingsMaturity" xlink:to="lab_ifrs-full_BorrowingsMaturity" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BorrowingsInterestRate" xlink:label="loc_ifrs-full_BorrowingsInterestRate" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_BorrowingsInterestRate" xml:lang="en-US">Borrowings, interest rate</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_BorrowingsInterestRate" xml:lang="en-US">Borrowings Interest rate</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/definitionGuidance" xlink:label="lab_ifrs-full_BorrowingsInterestRate" xml:lang="en-US">Borrowings, interest rate</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_BorrowingsInterestRate" xlink:to="lab_ifrs-full_BorrowingsInterestRate" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DateOfCommencementOfPrincipalRepaymentInAdvance" xlink:label="loc_thtx_DateOfCommencementOfPrincipalRepaymentInAdvance" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DateOfCommencementOfPrincipalRepaymentInAdvance" xml:lang="en-US">Date of Commencement of Principal Repayment In Advance</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_DateOfCommencementOfPrincipalRepaymentInAdvance" xml:lang="en-US">Date of commencement of principal repayment in advance</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DateOfCommencementOfPrincipalRepaymentInAdvance" xlink:to="lab_thtx_DateOfCommencementOfPrincipalRepaymentInAdvance" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DateOfCommencementOfPrincipalRepaymentInAdvance" xml:lang="en-US">Date of commencement of principal repayment in advance.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_CeilingLimitForPrepaymentOfPrincipalAmountOutstandingPercent" xlink:label="loc_thtx_CeilingLimitForPrepaymentOfPrincipalAmountOutstandingPercent" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_CeilingLimitForPrepaymentOfPrincipalAmountOutstandingPercent" xml:lang="en-US">Ceiling Limit for Prepayment of Principal Amount Outstanding Percent</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_CeilingLimitForPrepaymentOfPrincipalAmountOutstandingPercent" xml:lang="en-US">Ceiling limit for prepayment of principal amount outstanding, Percent</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_CeilingLimitForPrepaymentOfPrincipalAmountOutstandingPercent" xlink:to="lab_thtx_CeilingLimitForPrepaymentOfPrincipalAmountOutstandingPercent" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_CeilingLimitForPrepaymentOfPrincipalAmountOutstandingPercent" xml:lang="en-US">Ceiling limit for prepayment of principal amount outstanding percent.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_WeightedAverageExercisePriceOfOtherEquityInstrumentsExercisableInSharebasedPaymentArrangement2019" xlink:label="loc_ifrs-full_WeightedAverageExercisePriceOfOtherEquityInstrumentsExercisableInSharebasedPaymentArrangement2019" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_WeightedAverageExercisePriceOfOtherEquityInstrumentsExercisableInSharebasedPaymentArrangement2019" xml:lang="en-US">Weighted average exercise price of other equity instruments exercisable in share-based payment arrangement</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_WeightedAverageExercisePriceOfOtherEquityInstrumentsExercisableInSharebasedPaymentArrangement2019" xml:lang="en-US">Warrants exercisable price per share</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_WeightedAverageExercisePriceOfOtherEquityInstrumentsExercisableInSharebasedPaymentArrangement2019" xlink:to="lab_ifrs-full_WeightedAverageExercisePriceOfOtherEquityInstrumentsExercisableInSharebasedPaymentArrangement2019" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NumberOfOtherEquityInstrumentsExercisableInSharebasedPaymentArrangement" xlink:label="loc_ifrs-full_NumberOfOtherEquityInstrumentsExercisableInSharebasedPaymentArrangement" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_NumberOfOtherEquityInstrumentsExercisableInSharebasedPaymentArrangement" xml:lang="en-US">Number of other equity instruments exercisable in share-based payment arrangement</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_NumberOfOtherEquityInstrumentsExercisableInSharebasedPaymentArrangement" xml:lang="en-US">Warrants exercisable</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NumberOfOtherEquityInstrumentsExercisableInSharebasedPaymentArrangement" xlink:to="lab_ifrs-full_NumberOfOtherEquityInstrumentsExercisableInSharebasedPaymentArrangement" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_ConsiderationPayable" xlink:label="loc_thtx_ConsiderationPayable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_ConsiderationPayable" xml:lang="en-US">Consideration Payable</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_ConsiderationPayable" xml:lang="en-US">Consideration payable</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_ConsiderationPayable" xlink:to="lab_thtx_ConsiderationPayable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_ConsiderationPayable" xml:lang="en-US">Consideration payable.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DebtInstrumentAmortizedValue" xlink:label="loc_thtx_DebtInstrumentAmortizedValue" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DebtInstrumentAmortizedValue" xml:lang="en-US">Debt Instrument Amortized Value</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_DebtInstrumentAmortizedValue" xml:lang="en-US">Debt instrument amortized value</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DebtInstrumentAmortizedValue" xlink:to="lab_thtx_DebtInstrumentAmortizedValue" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DebtInstrumentAmortizedValue" xml:lang="en-US">Debt instrument amortized value.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DebtInstrumentCollateralAmountIfFDAApprovalNotObtained" xlink:label="loc_thtx_DebtInstrumentCollateralAmountIfFDAApprovalNotObtained" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DebtInstrumentCollateralAmountIfFDAApprovalNotObtained" xml:lang="en-US">Debt Instrument Collateral Amount If FDA Approval Not Obtained</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_DebtInstrumentCollateralAmountIfFDAApprovalNotObtained" xml:lang="en-US">Debt instrument collateral amount if FDA approval not obtained</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DebtInstrumentCollateralAmountIfFDAApprovalNotObtained" xlink:to="lab_thtx_DebtInstrumentCollateralAmountIfFDAApprovalNotObtained" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DebtInstrumentCollateralAmountIfFDAApprovalNotObtained" xml:lang="en-US">Amount of assets pledged to secure a debt instrument if FDA approval not obtained.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BorrowingsInterestRateBasis" xlink:label="loc_ifrs-full_BorrowingsInterestRateBasis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_BorrowingsInterestRateBasis" xml:lang="en-US">Borrowings, interest rate basis</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_BorrowingsInterestRateBasis" xml:lang="en-US">Borrowings, interest rate basis</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_BorrowingsInterestRateBasis" xlink:to="lab_ifrs-full_BorrowingsInterestRateBasis" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DebtInstrumentCollateralAmounts" xlink:label="loc_thtx_DebtInstrumentCollateralAmounts" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DebtInstrumentCollateralAmounts" xml:lang="en-US">Debt Instrument Collateral Amounts</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_DebtInstrumentCollateralAmounts" xml:lang="en-US">Debt instrument collateral amount</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DebtInstrumentCollateralAmounts" xlink:to="lab_thtx_DebtInstrumentCollateralAmounts" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DebtInstrumentCollateralAmounts" xml:lang="en-US">Amount of assets pledged to secure a debt instrument.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_LineOfCreditFacilityMaximumBorrowingsCapacity" xlink:label="loc_thtx_LineOfCreditFacilityMaximumBorrowingsCapacity" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_LineOfCreditFacilityMaximumBorrowingsCapacity" xml:lang="en-US">Line Of Credit Facility Maximum Borrowings Capacity</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_LineOfCreditFacilityMaximumBorrowingsCapacity" xml:lang="en-US">Line of credit facility, maximum borrowing capacity</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_LineOfCreditFacilityMaximumBorrowingsCapacity" xlink:to="lab_thtx_LineOfCreditFacilityMaximumBorrowingsCapacity" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_LineOfCreditFacilityMaximumBorrowingsCapacity" xml:lang="en-US">Line of Credit facility maximum borrowings capacity.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NotionalAmount" xlink:label="loc_ifrs-full_NotionalAmount" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_NotionalAmount" xml:lang="en-US">Notional amount</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/presentationGuidance" xlink:label="lab_ifrs-full_NotionalAmount" xml:lang="en-US">Notional amount</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NotionalAmount" xlink:to="lab_ifrs-full_NotionalAmount" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TypesOfInterestRatesAxis" xlink:label="loc_ifrs-full_TypesOfInterestRatesAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_TypesOfInterestRatesAxis" xml:lang="en-US">Types of interest rates [axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TypesOfInterestRatesAxis" xlink:to="lab_ifrs-full_TypesOfInterestRatesAxis" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TypesOfInterestRatesDomain" xlink:label="loc_ifrs-full_TypesOfInterestRatesDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_TypesOfInterestRatesDomain" xml:lang="en-US">Types of interest rates [domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TypesOfInterestRatesDomain" xlink:to="lab_ifrs-full_TypesOfInterestRatesDomain" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_USTreasuryRateMember" xlink:label="loc_thtx_USTreasuryRateMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_USTreasuryRateMember" xml:lang="en-US">U S Treasury Rate [Member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_USTreasuryRateMember" xlink:to="lab_thtx_USTreasuryRateMember" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FixedInterestRateMember" xlink:label="loc_ifrs-full_FixedInterestRateMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_FixedInterestRateMember" xml:lang="en-US">Fixed interest rate [member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FixedInterestRateMember" xlink:to="lab_ifrs-full_FixedInterestRateMember" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_USBaseRateMember" xlink:label="loc_thtx_USBaseRateMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_USBaseRateMember" xml:lang="en-US">U S Base Rate [Member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_USBaseRateMember" xlink:to="lab_thtx_USBaseRateMember" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BorrowingCostsRecognisedAsExpense" xlink:label="loc_ifrs-full_BorrowingCostsRecognisedAsExpense" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_BorrowingCostsRecognisedAsExpense" xml:lang="en-US">Borrowing costs recognised as expense</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:label="lab_ifrs-full_BorrowingCostsRecognisedAsExpense" xml:lang="en-US">Costs related to issuance</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_ifrs-full_BorrowingCostsRecognisedAsExpense" xml:lang="en-US">Transaction costs</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_BorrowingCostsRecognisedAsExpense" xlink:to="lab_ifrs-full_BorrowingCostsRecognisedAsExpense" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_IssuanceOfLongTermDebt" xlink:label="loc_thtx_IssuanceOfLongTermDebt" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_IssuanceOfLongTermDebt" xml:lang="en-US">Issuance Of Long Term Debt</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_IssuanceOfLongTermDebt" xml:lang="en-US">Issuance</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_IssuanceOfLongTermDebt" xlink:to="lab_thtx_IssuanceOfLongTermDebt" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_IssuanceOfLongTermDebt" xml:lang="en-US">Issuance Of Long Term Debt.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_LossOnRepayment" xlink:label="loc_thtx_LossOnRepayment" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_LossOnRepayment" xml:lang="en-US">Loss On Repayment</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_LossOnRepayment" xml:lang="en-US">Loss on repayment</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_LossOnRepayment" xlink:to="lab_thtx_LossOnRepayment" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_LossOnRepayment" xml:lang="en-US">Loss On Repayment</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_CostsRelatedToRepayment" xlink:label="loc_thtx_CostsRelatedToRepayment" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_CostsRelatedToRepayment" xml:lang="en-US">Costs Related To Repayment</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_CostsRelatedToRepayment" xml:lang="en-US">Costs related to repayment</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_CostsRelatedToRepayment" xlink:to="lab_thtx_CostsRelatedToRepayment" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_CostsRelatedToRepayment" xml:lang="en-US">Costs Related To Repayment</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LoansReceived" xlink:label="loc_ifrs-full_LoansReceived" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_LoansReceived" xml:lang="en-US">Loans received</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_LoansReceived" xml:lang="en-US">Term loan</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LoansReceived" xlink:to="lab_ifrs-full_LoansReceived" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_ProceedsFromConsiderationOfTheFifthAmendment" xlink:label="loc_thtx_ProceedsFromConsiderationOfTheFifthAmendment" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_ProceedsFromConsiderationOfTheFifthAmendment" xml:lang="en-US">Proceeds From Consideration Of The Fifth Amendment</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_ProceedsFromConsiderationOfTheFifthAmendment" xml:lang="en-US">Consideration for the Fifth Amendment</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_ProceedsFromConsiderationOfTheFifthAmendment" xlink:to="lab_thtx_ProceedsFromConsiderationOfTheFifthAmendment" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_ProceedsFromConsiderationOfTheFifthAmendment" xml:lang="en-US">Proceeds from consideration of the fifth amendment.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_BorrowingsAccretionExpense" xlink:label="loc_thtx_BorrowingsAccretionExpense" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_BorrowingsAccretionExpense" xml:lang="en-US">Borrowings Accretion Expense</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_BorrowingsAccretionExpense" xml:lang="en-US">Accretion expense</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_BorrowingsAccretionExpense" xlink:to="lab_thtx_BorrowingsAccretionExpense" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_BorrowingsAccretionExpense" xml:lang="en-US">Borrowings accretion expense.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_MarathonWarrantsMember" xlink:label="loc_thtx_MarathonWarrantsMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_MarathonWarrantsMember" xml:lang="en-US">Marathon Warrants [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_MarathonWarrantsMember" xml:lang="en-US">Marathon Warrants [member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_MarathonWarrantsMember" xlink:to="lab_thtx_MarathonWarrantsMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_MarathonWarrantsMember" xml:lang="en-US">Marathon warrants member.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_LoanFacilityTrancheTwoLoanMember" xlink:label="loc_thtx_LoanFacilityTrancheTwoLoanMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_LoanFacilityTrancheTwoLoanMember" xml:lang="en-US">Loan Facility Tranche Two Loan [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_LoanFacilityTrancheTwoLoanMember" xml:lang="en-US">Loan Facility Tranche 2 Loan [member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_LoanFacilityTrancheTwoLoanMember" xlink:to="lab_thtx_LoanFacilityTrancheTwoLoanMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_LoanFacilityTrancheTwoLoanMember" xml:lang="en-US">Loan facility tranche two loan member.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentPortionOfOtherNoncurrentBorrowings" xlink:label="loc_ifrs-full_NoncurrentPortionOfOtherNoncurrentBorrowings" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_NoncurrentPortionOfOtherNoncurrentBorrowings" xml:lang="en-US">Non-current portion of other non-current borrowings</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_NoncurrentPortionOfOtherNoncurrentBorrowings" xml:lang="en-US">Non-current portion of other non-current borrowings</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NoncurrentPortionOfOtherNoncurrentBorrowings" xlink:to="lab_ifrs-full_NoncurrentPortionOfOtherNoncurrentBorrowings" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_ConvertibleUnsecuredSeniorNotesTable" xlink:label="loc_thtx_ConvertibleUnsecuredSeniorNotesTable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_ConvertibleUnsecuredSeniorNotesTable" xml:lang="en-US">Convertible Unsecured Senior Notes [Table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_ConvertibleUnsecuredSeniorNotesTable" xlink:to="lab_thtx_ConvertibleUnsecuredSeniorNotesTable" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_ConvertibleUnsecuredSeniorNotesLineItems" xlink:label="loc_thtx_ConvertibleUnsecuredSeniorNotesLineItems" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_ConvertibleUnsecuredSeniorNotesLineItems" xml:lang="en-US">Convertible unsecured senior notes [Line Items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_ConvertibleUnsecuredSeniorNotesLineItems" xlink:to="lab_thtx_ConvertibleUnsecuredSeniorNotesLineItems" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_ConvertibleUnsecuredSeniorNotesLineItems" xml:lang="en-US">Convertible unsecured senior notes.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_ConvertibleInstrumentsNumberOfSharesIssued" xlink:label="loc_thtx_ConvertibleInstrumentsNumberOfSharesIssued" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_ConvertibleInstrumentsNumberOfSharesIssued" xml:lang="en-US">Convertible Instruments Number Of Shares Issued</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_ConvertibleInstrumentsNumberOfSharesIssued" xml:lang="en-US">Convertible instruments number of shares issued</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_ConvertibleInstrumentsNumberOfSharesIssued" xlink:to="lab_thtx_ConvertibleInstrumentsNumberOfSharesIssued" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_ConvertibleInstrumentsNumberOfSharesIssued" xml:lang="en-US">Convertible instruments number of shares issued.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProceedsFromIssueOfBondsNotesAndDebentures" xlink:label="loc_ifrs-full_ProceedsFromIssueOfBondsNotesAndDebentures" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ProceedsFromIssueOfBondsNotesAndDebentures" xml:lang="en-US">Proceeds from issue of bonds, notes and debentures</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_ProceedsFromIssueOfBondsNotesAndDebentures" xml:lang="en-US">Proceeds from issue of convertible unsecured senior notes</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProceedsFromIssueOfBondsNotesAndDebentures" xlink:to="lab_ifrs-full_ProceedsFromIssueOfBondsNotesAndDebentures" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfLiabilitiesAxis" xlink:label="loc_ifrs-full_ClassesOfLiabilitiesAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ClassesOfLiabilitiesAxis" xml:lang="en-US">Classes of liabilities [axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfLiabilitiesAxis" xlink:to="lab_ifrs-full_ClassesOfLiabilitiesAxis" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfLiabilitiesDomain" xlink:label="loc_ifrs-full_ClassesOfLiabilitiesDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ClassesOfLiabilitiesDomain" xml:lang="en-US">Classes of liabilities [domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfLiabilitiesDomain" xlink:to="lab_ifrs-full_ClassesOfLiabilitiesDomain" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_ConvertibleUnsecuredSeniorNotesMember" xlink:label="loc_thtx_ConvertibleUnsecuredSeniorNotesMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_ConvertibleUnsecuredSeniorNotesMember" xml:lang="en-US">Convertible Unsecured Senior Notes [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_ConvertibleUnsecuredSeniorNotesMember" xml:lang="en-US">Convertible Unsecured Senior Notes [member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_ConvertibleUnsecuredSeniorNotesMember" xlink:to="lab_thtx_ConvertibleUnsecuredSeniorNotesMember" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentPortionOfNoncurrentNotesAndDebenturesIssued" xlink:label="loc_ifrs-full_NoncurrentPortionOfNoncurrentNotesAndDebenturesIssued" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_NoncurrentPortionOfNoncurrentNotesAndDebenturesIssued" xml:lang="en-US">Non-current portion of non-current notes and debentures issued</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_ifrs-full_NoncurrentPortionOfNoncurrentNotesAndDebenturesIssued" xml:lang="en-US">Convertible unsecured senior notes, Ending balance</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_ifrs-full_NoncurrentPortionOfNoncurrentNotesAndDebenturesIssued" xml:lang="en-US">Convertible unsecured senior notes, Beginning balance</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NoncurrentPortionOfNoncurrentNotesAndDebenturesIssued" xlink:to="lab_ifrs-full_NoncurrentPortionOfNoncurrentNotesAndDebenturesIssued" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_OtherChangesInConversionSeniorNotes" xlink:label="loc_thtx_OtherChangesInConversionSeniorNotes" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_OtherChangesInConversionSeniorNotes" xml:lang="en-US">Other Changes in Conversion Senior Notes</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_thtx_OtherChangesInConversionSeniorNotes" xml:lang="en-US">Conversion</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_OtherChangesInConversionSeniorNotes" xlink:to="lab_thtx_OtherChangesInConversionSeniorNotes" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_OtherChangesInConversionSeniorNotes" xml:lang="en-US">Other changes in conversion senior notes.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_ChangesFromFinancingCashFlowsAbstract" xlink:label="loc_thtx_ChangesFromFinancingCashFlowsAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_ChangesFromFinancingCashFlowsAbstract" xml:lang="en-US">Changes From Financing Cash Flows [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_ChangesFromFinancingCashFlowsAbstract" xml:lang="en-US">Changes from financing cash flows:</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_ChangesFromFinancingCashFlowsAbstract" xlink:to="lab_thtx_ChangesFromFinancingCashFlowsAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_ChangesFromFinancingCashFlowsAbstract" xml:lang="en-US">Changes from financing cash flows.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ChangesInNetDefinedBenefitLiabilityAssetResultingFromMiscellaneousOtherChangesAbstract" xlink:label="loc_ifrs-full_ChangesInNetDefinedBenefitLiabilityAssetResultingFromMiscellaneousOtherChangesAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ChangesInNetDefinedBenefitLiabilityAssetResultingFromMiscellaneousOtherChangesAbstract" xml:lang="en-US">Changes in net defined benefit liability (asset) resulting from miscellaneous other changes [abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_ChangesInNetDefinedBenefitLiabilityAssetResultingFromMiscellaneousOtherChangesAbstract" xml:lang="en-US">Other changes:</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ChangesInNetDefinedBenefitLiabilityAssetResultingFromMiscellaneousOtherChangesAbstract" xlink:to="lab_ifrs-full_ChangesInNetDefinedBenefitLiabilityAssetResultingFromMiscellaneousOtherChangesAbstract" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_AccretionExpenses" xlink:label="loc_thtx_AccretionExpenses" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_AccretionExpenses" xml:lang="en-US">Accretion Expenses</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_AccretionExpenses" xml:lang="en-US">Accretion expense</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_AccretionExpenses" xlink:to="lab_thtx_AccretionExpenses" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_AccretionExpenses" xml:lang="en-US">Accretion expenses.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_LiabilityComponentMember" xlink:label="loc_thtx_LiabilityComponentMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_LiabilityComponentMember" xml:lang="en-US">Liability Component [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_LiabilityComponentMember" xml:lang="en-US">Liability component</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_LiabilityComponentMember" xlink:to="lab_thtx_LiabilityComponentMember" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LeaseLiabilities" xlink:label="loc_ifrs-full_LeaseLiabilities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_LeaseLiabilities" xml:lang="en-US">Lease liabilities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_ifrs-full_LeaseLiabilities" xml:lang="en-US">Beginning Balance</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_ifrs-full_LeaseLiabilities" xml:lang="en-US">Ending Balance</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_LeaseLiabilities" xml:lang="en-US">Lease liabilitites</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LeaseLiabilities" xlink:to="lab_ifrs-full_LeaseLiabilities" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_AccretionExpenseOfLeasesLiabilities" xlink:label="loc_thtx_AccretionExpenseOfLeasesLiabilities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_AccretionExpenseOfLeasesLiabilities" xml:lang="en-US">Accretion expense of Leases liabilities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_AccretionExpenseOfLeasesLiabilities" xml:lang="en-US">Accretion expense</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_AccretionExpenseOfLeasesLiabilities" xlink:to="lab_thtx_AccretionExpenseOfLeasesLiabilities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_AccretionExpenseOfLeasesLiabilities" xml:lang="en-US">Accretion expense of Leases liabilities.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashOutflowForLeases" xlink:label="loc_ifrs-full_CashOutflowForLeases" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_CashOutflowForLeases" xml:lang="en-US">Cash outflow for leases</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_ifrs-full_CashOutflowForLeases" xml:lang="en-US">Lease payments</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashOutflowForLeases" xlink:to="lab_ifrs-full_CashOutflowForLeases" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_LeasesLiabilitiesEffectOfChangeInExchangeRates" xlink:label="loc_thtx_LeasesLiabilitiesEffectOfChangeInExchangeRates" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_LeasesLiabilitiesEffectOfChangeInExchangeRates" xml:lang="en-US">Leases liabilities Effect of change in exchange rates</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_LeasesLiabilitiesEffectOfChangeInExchangeRates" xml:lang="en-US">Effect of change in exchange rates</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_LeasesLiabilitiesEffectOfChangeInExchangeRates" xlink:to="lab_thtx_LeasesLiabilitiesEffectOfChangeInExchangeRates" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_LeasesLiabilitiesEffectOfChangeInExchangeRates" xml:lang="en-US">Leases liabilities Effect of change in exchange rates.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_LeaseExpenses" xlink:label="loc_thtx_LeaseExpenses" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_LeaseExpenses" xml:lang="en-US">Lease Expenses</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_LeaseExpenses" xml:lang="en-US">Lease expenses</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_LeaseExpenses" xlink:to="lab_thtx_LeaseExpenses" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_LeaseExpenses" xml:lang="en-US">Lease expenses.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GainsLossesArisingFromSaleAndLeasebackTransactions" xlink:label="loc_ifrs-full_GainsLossesArisingFromSaleAndLeasebackTransactions" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_GainsLossesArisingFromSaleAndLeasebackTransactions" xml:lang="en-US">Gains (losses) arising from sale and leaseback transactions</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_GainsLossesArisingFromSaleAndLeasebackTransactions" xml:lang="en-US">Termination (a)</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GainsLossesArisingFromSaleAndLeasebackTransactions" xlink:to="lab_ifrs-full_GainsLossesArisingFromSaleAndLeasebackTransactions" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsTable" xlink:label="loc_ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsTable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsTable" xml:lang="en-US">Disclosure of quantitative information about right-of-use assets [table]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsTable" xml:lang="en-US">Disclosure of quantitative information about right-of-use assets [table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsTable" xlink:to="lab_ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsTable" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsLineItems" xlink:label="loc_ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsLineItems" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsLineItems" xml:lang="en-US">Disclosure of quantitative information about right-of-use assets [line items]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsLineItems" xml:lang="en-US">Disclosure of quantitative information about right-of-use assets [line items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsLineItems" xlink:to="lab_ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsLineItems" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiabilities" xlink:label="loc_thtx_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiabilities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiabilities" xml:lang="en-US">Right Of Use Asset Obtained In Exchange For Operating Lease Liabilities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiabilities" xlink:to="lab_thtx_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiabilities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiabilities" xml:lang="en-US">Right of use asset obtained in exchange for operating lease liabilities.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_TerminationOfLeasesOperatingLeaseRightOfUseLiability" xlink:label="loc_thtx_TerminationOfLeasesOperatingLeaseRightOfUseLiability" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_TerminationOfLeasesOperatingLeaseRightOfUseLiability" xml:lang="en-US">Termination Of Leases Operating Lease Right Of Use Liability</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_TerminationOfLeasesOperatingLeaseRightOfUseLiability" xlink:to="lab_thtx_TerminationOfLeasesOperatingLeaseRightOfUseLiability" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_TerminationOfLeasesOperatingLeaseRightOfUseLiability" xml:lang="en-US">Termination of leases operating lease right of use liability.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_TerminationOfLeasesOperatingLeaseRightOfUseAssets" xlink:label="loc_thtx_TerminationOfLeasesOperatingLeaseRightOfUseAssets" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_TerminationOfLeasesOperatingLeaseRightOfUseAssets" xml:lang="en-US">Termination Of Leases Operating Lease Right Of Use Assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_TerminationOfLeasesOperatingLeaseRightOfUseAssets" xml:lang="en-US">Termination Of Leases Operating Lease Right Of Use Assets</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_TerminationOfLeasesOperatingLeaseRightOfUseAssets" xlink:to="lab_thtx_TerminationOfLeasesOperatingLeaseRightOfUseAssets" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_TerminationOfLeasesOperatingLeaseRightOfUseAssets" xml:lang="en-US">Termination of leases operating lease right of use asset.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_StatementGeographicalAxis" xlink:label="loc_srt_StatementGeographicalAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_srt_StatementGeographicalAxis" xml:lang="en-US">Geographical [Axis]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_srt_StatementGeographicalAxis" xml:lang="en-US">Geographical [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_StatementGeographicalAxis" xlink:to="lab_srt_StatementGeographicalAxis" />
<loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_SegmentGeographicalDomain" xlink:label="loc_srt_SegmentGeographicalDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_srt_SegmentGeographicalDomain" xml:lang="en-US">Geographical [Domain]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_srt_SegmentGeographicalDomain" xml:lang="en-US">Geographical [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_SegmentGeographicalDomain" xlink:to="lab_srt_SegmentGeographicalDomain" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2024/country-2024.xsd#country_IE" xlink:label="loc_country_IE" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_country_IE" xml:lang="en-US">IRELAND</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_country_IE" xml:lang="en-US">IE</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_country_IE" xml:lang="en-US">Ireland</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_country_IE" xlink:to="lab_country_IE" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfClassesOfShareCapitalTable" xlink:label="loc_ifrs-full_DisclosureOfClassesOfShareCapitalTable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfClassesOfShareCapitalTable" xml:lang="en-US">Disclosure of classes of share capital [table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfClassesOfShareCapitalTable" xlink:to="lab_ifrs-full_DisclosureOfClassesOfShareCapitalTable" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_SchemeOfShareIssueAxis" xlink:label="loc_thtx_SchemeOfShareIssueAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_SchemeOfShareIssueAxis" xml:lang="en-US">Scheme Of Share Issue [Axis]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_SchemeOfShareIssueAxis" xml:lang="en-US">Scheme Of Share Issue [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_SchemeOfShareIssueAxis" xlink:to="lab_thtx_SchemeOfShareIssueAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_SchemeOfShareIssueAxis" xml:lang="en-US">Scheme Of Share Issue Axis.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_SchemeOfShareIssueDomain" xlink:label="loc_thtx_SchemeOfShareIssueDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_SchemeOfShareIssueDomain" xml:lang="en-US">Scheme Of Share Issue [Domain]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_SchemeOfShareIssueDomain" xml:lang="en-US">Scheme Of Share Issue [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_SchemeOfShareIssueDomain" xlink:to="lab_thtx_SchemeOfShareIssueDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_SchemeOfShareIssueDomain" xml:lang="en-US">Scheme Of Share Issue Domain.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TypesOfSharebasedPaymentArrangementsAxis" xlink:label="loc_ifrs-full_TypesOfSharebasedPaymentArrangementsAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_TypesOfSharebasedPaymentArrangementsAxis" xml:lang="en-US">Types of share-based payment arrangements [axis]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_TypesOfSharebasedPaymentArrangementsAxis" xml:lang="en-US">Types of share-based payment arrangements [axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TypesOfSharebasedPaymentArrangementsAxis" xlink:to="lab_ifrs-full_TypesOfSharebasedPaymentArrangementsAxis" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TypesOfSharebasedPaymentArrangementsDomain" xlink:label="loc_ifrs-full_TypesOfSharebasedPaymentArrangementsDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_TypesOfSharebasedPaymentArrangementsDomain" xml:lang="en-US">Types of share-based payment arrangements [domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TypesOfSharebasedPaymentArrangementsDomain" xlink:to="lab_ifrs-full_TypesOfSharebasedPaymentArrangementsDomain" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DeferredStockUnitsMember" xlink:label="loc_thtx_DeferredStockUnitsMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DeferredStockUnitsMember" xml:lang="en-US">Deferred Stock Units [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_DeferredStockUnitsMember" xml:lang="en-US">Deferred Stock Units [Member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DeferredStockUnitsMember" xlink:to="lab_thtx_DeferredStockUnitsMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DeferredStockUnitsMember" xml:lang="en-US">Deferred Stock Units Member.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfFinancialAssetsAxis" xlink:label="loc_ifrs-full_ClassesOfFinancialAssetsAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ClassesOfFinancialAssetsAxis" xml:lang="en-US">Classes of financial assets [axis]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_ClassesOfFinancialAssetsAxis" xml:lang="en-US">Classes of financial assets [axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfFinancialAssetsAxis" xlink:to="lab_ifrs-full_ClassesOfFinancialAssetsAxis" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfFinancialAssetsDomain" xlink:label="loc_ifrs-full_ClassesOfFinancialAssetsDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ClassesOfFinancialAssetsDomain" xml:lang="en-US">Classes of financial assets [domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfFinancialAssetsDomain" xlink:to="lab_ifrs-full_ClassesOfFinancialAssetsDomain" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_CashSettledForwardContractsMember" xlink:label="loc_thtx_CashSettledForwardContractsMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_CashSettledForwardContractsMember" xml:lang="en-US">Cash Settled Forward Contracts [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_CashSettledForwardContractsMember" xml:lang="en-US">Cash Settled Forward Contracts [Member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_CashSettledForwardContractsMember" xlink:to="lab_thtx_CashSettledForwardContractsMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_CashSettledForwardContractsMember" xml:lang="en-US">Cash Settled Forward Contracts Member.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_PlanAxis" xlink:label="loc_thtx_PlanAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_PlanAxis" xml:lang="en-US">Plan [Axis]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_PlanAxis" xml:lang="en-US">Plan [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_PlanAxis" xlink:to="lab_thtx_PlanAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_PlanAxis" xml:lang="en-US">Plan Axis.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_PlanDomain" xlink:label="loc_thtx_PlanDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_PlanDomain" xml:lang="en-US">Plan [Domain]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_PlanDomain" xml:lang="en-US">Plan [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_PlanDomain" xlink:to="lab_thtx_PlanDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_PlanDomain" xml:lang="en-US">Plan Domain.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_TwoThousandAndSixteenShareholdersPlanMember" xlink:label="loc_thtx_TwoThousandAndSixteenShareholdersPlanMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_TwoThousandAndSixteenShareholdersPlanMember" xml:lang="en-US">Two Thousand And Sixteen Shareholders Plan [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_TwoThousandAndSixteenShareholdersPlanMember" xml:lang="en-US">Two Thousand And Sixteen Shareholders Plan [Member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_TwoThousandAndSixteenShareholdersPlanMember" xlink:to="lab_thtx_TwoThousandAndSixteenShareholdersPlanMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_TwoThousandAndSixteenShareholdersPlanMember" xml:lang="en-US">Two Thousand And Sixteen Shareholders Plan Member.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_StockOptionPlanTwoThousandAndNineteenMember" xlink:label="loc_thtx_StockOptionPlanTwoThousandAndNineteenMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_StockOptionPlanTwoThousandAndNineteenMember" xml:lang="en-US">Stock Option Plan Two Thousand And Nineteen [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_StockOptionPlanTwoThousandAndNineteenMember" xml:lang="en-US">Stock Option Plan Two Thousand And Nineteen [Member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_StockOptionPlanTwoThousandAndNineteenMember" xlink:to="lab_thtx_StockOptionPlanTwoThousandAndNineteenMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_StockOptionPlanTwoThousandAndNineteenMember" xml:lang="en-US">Stock Option Plan Two Thousand And Nineteen Member.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_StockAppreciationRightsMember" xlink:label="loc_thtx_StockAppreciationRightsMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_StockAppreciationRightsMember" xml:lang="en-US">Stock Appreciation Rights [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/presentationGuidance" xlink:label="lab_thtx_StockAppreciationRightsMember" xml:lang="en-US">Stock Appreciation Rights [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/definitionGuidance" xlink:label="lab_thtx_StockAppreciationRightsMember" xml:lang="en-US">Stock Appreciation Rights [Member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_StockAppreciationRightsMember" xlink:to="lab_thtx_StockAppreciationRightsMember" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_CategoryOfBorrowingsAxis" xlink:label="loc_thtx_CategoryOfBorrowingsAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_CategoryOfBorrowingsAxis" xml:lang="en-US">Category of borrowings [axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_CategoryOfBorrowingsAxis" xlink:to="lab_thtx_CategoryOfBorrowingsAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_CategoryOfBorrowingsAxis" xml:lang="en-US">Category Of Borrowings Axis.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_CategoryOfBorrowingsDomain" xlink:label="loc_thtx_CategoryOfBorrowingsDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_CategoryOfBorrowingsDomain" xml:lang="en-US">Category of borrowings [domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_CategoryOfBorrowingsDomain" xlink:to="lab_thtx_CategoryOfBorrowingsDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_CategoryOfBorrowingsDomain" xml:lang="en-US">Category Of Borrowings Domain.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:label="loc_ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xml:lang="en-US">Disclosure of classes of share capital [line items]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xml:lang="en-US">Disclosure of classes of share capital [line items]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xml:lang="en-US">Options granted</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:to="lab_ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_NumberOfCashSettledForwardStockContractsOutstanding" xlink:label="loc_thtx_NumberOfCashSettledForwardStockContractsOutstanding" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_NumberOfCashSettledForwardStockContractsOutstanding" xml:lang="en-US">Number of Cash Settled Forward Stock Contracts Outstanding</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_NumberOfCashSettledForwardStockContractsOutstanding" xml:lang="en-US">Shares outstanding</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_NumberOfCashSettledForwardStockContractsOutstanding" xlink:to="lab_thtx_NumberOfCashSettledForwardStockContractsOutstanding" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_NumberOfCashSettledForwardStockContractsOutstanding" xml:lang="en-US">Number of cash settled forward stock contracts outstanding.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement" xlink:label="loc_ifrs-full_NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement" xml:lang="en-US">Number of other equity instruments outstanding in share-based payment arrangement</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement" xml:lang="en-US">Deferred stock units outstanding</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement" xlink:to="lab_ifrs-full_NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DerivativeFinancialAssetsAtFairValueNotDesignatedAsHedging" xlink:label="loc_thtx_DerivativeFinancialAssetsAtFairValueNotDesignatedAsHedging" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DerivativeFinancialAssetsAtFairValueNotDesignatedAsHedging" xml:lang="en-US">Derivative Financial Assets At Fair Value Not Designated As Hedging</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_DerivativeFinancialAssetsAtFairValueNotDesignatedAsHedging" xml:lang="en-US">Fair value of cash settled forward contracts</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DerivativeFinancialAssetsAtFairValueNotDesignatedAsHedging" xlink:to="lab_thtx_DerivativeFinancialAssetsAtFairValueNotDesignatedAsHedging" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DerivativeFinancialAssetsAtFairValueNotDesignatedAsHedging" xml:lang="en-US">Derivative financial assets at fair value not designated as hedging.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfOptionLifeShareOptionsGranted" xlink:label="loc_ifrs-full_DescriptionOfOptionLifeShareOptionsGranted" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DescriptionOfOptionLifeShareOptionsGranted" xml:lang="en-US">Option life, share options granted</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/definitionGuidance" xlink:label="lab_ifrs-full_DescriptionOfOptionLifeShareOptionsGranted" xml:lang="en-US">Exercise period of options</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_DescriptionOfOptionLifeShareOptionsGranted" xml:lang="en-US">Average option life in years</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfOptionLifeShareOptionsGranted" xlink:to="lab_ifrs-full_DescriptionOfOptionLifeShareOptionsGranted" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_RemainingSharesReservedForIssueUnderOptionsAndContractForSaleOfShares" xlink:label="loc_thtx_RemainingSharesReservedForIssueUnderOptionsAndContractForSaleOfShares" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_RemainingSharesReservedForIssueUnderOptionsAndContractForSaleOfShares" xml:lang="en-US">Remaining Shares Reserved For Issue Under Options And Contract For Sale Of Shares</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_RemainingSharesReservedForIssueUnderOptionsAndContractForSaleOfShares" xml:lang="en-US">Remaining options available for issuance</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_RemainingSharesReservedForIssueUnderOptionsAndContractForSaleOfShares" xlink:to="lab_thtx_RemainingSharesReservedForIssueUnderOptionsAndContractForSaleOfShares" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_RemainingSharesReservedForIssueUnderOptionsAndContractForSaleOfShares" xml:lang="en-US">Remaining shares reserved for issue under options and contract for sale of shares.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_EffectOfShareOptionsOnNumberOfOrdinaryShares" xlink:label="loc_thtx_EffectOfShareOptionsOnNumberOfOrdinaryShares" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_EffectOfShareOptionsOnNumberOfOrdinaryShares" xml:lang="en-US">Effect of Share Options on Number of Ordinary Shares</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_EffectOfShareOptionsOnNumberOfOrdinaryShares" xml:lang="en-US">Effect of share options number of ordinary shares</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_EffectOfShareOptionsOnNumberOfOrdinaryShares" xml:lang="en-US">Effect of share issue</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_EffectOfShareOptionsOnNumberOfOrdinaryShares" xlink:to="lab_thtx_EffectOfShareOptionsOnNumberOfOrdinaryShares" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_EffectOfShareOptionsOnNumberOfOrdinaryShares" xml:lang="en-US">Effect of share options on number of ordinary shares.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ParValuePerShare" xlink:label="loc_ifrs-full_ParValuePerShare" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ParValuePerShare" xml:lang="en-US">Par value per share</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_ParValuePerShare" xml:lang="en-US">Par value per share</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ParValuePerShare" xlink:to="lab_ifrs-full_ParValuePerShare" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_StockAppreciationRightsContractualLife" xlink:label="loc_thtx_StockAppreciationRightsContractualLife" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_StockAppreciationRightsContractualLife" xml:lang="en-US">Stock Appreciation Rights Contractual Life</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_StockAppreciationRightsContractualLife" xml:lang="en-US">SAR Contractual Life</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_StockAppreciationRightsContractualLife" xlink:to="lab_thtx_StockAppreciationRightsContractualLife" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_StockAppreciationRightsContractualLife" xml:lang="en-US">Stock appreciation rights contractual life.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProceedsFromIssuingShares" xlink:label="loc_ifrs-full_ProceedsFromIssuingShares" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ProceedsFromIssuingShares" xml:lang="en-US">Proceeds from issuing shares</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_ProceedsFromIssuingShares" xml:lang="en-US">Proceeds from issuing shares</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProceedsFromIssuingShares" xlink:to="lab_ifrs-full_ProceedsFromIssuingShares" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_CommonStockConversionsBasis" xlink:label="loc_thtx_CommonStockConversionsBasis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_CommonStockConversionsBasis" xml:lang="en-US">Common Stock Conversions Basis</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_CommonStockConversionsBasis" xml:lang="en-US">Common stock, Conversion basis</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_CommonStockConversionsBasis" xlink:to="lab_thtx_CommonStockConversionsBasis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_CommonStockConversionsBasis" xml:lang="en-US">Common stock, Conversions basis.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_ClassOfWarrantOrRightsOutstanding" xlink:label="loc_thtx_ClassOfWarrantOrRightsOutstanding" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_ClassOfWarrantOrRightsOutstanding" xml:lang="en-US">Class Of Warrant Or Rights Outstanding</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_ClassOfWarrantOrRightsOutstanding" xml:lang="en-US">Class of warrant or right, Outstanding</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_ClassOfWarrantOrRightsOutstanding" xlink:to="lab_thtx_ClassOfWarrantOrRightsOutstanding" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_ClassOfWarrantOrRightsOutstanding" xml:lang="en-US">Class of warrant or rights, Outstanding.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights" xlink:label="loc_thtx_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights" xml:lang="en-US">Class Of Warrant Or Right Exercise Price Of Warrants Or Rights</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights" xml:lang="en-US">Exercise price of each warrants</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights" xlink:to="lab_thtx_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights" xml:lang="en-US">Class of warrant or right exercise price of warrants or rights.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_SaleOfStockConsiderationReceivedOnTransactions" xlink:label="loc_thtx_SaleOfStockConsiderationReceivedOnTransactions" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_SaleOfStockConsiderationReceivedOnTransactions" xml:lang="en-US">Sale Of Stock Consideration Received On Transactions</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_SaleOfStockConsiderationReceivedOnTransactions" xml:lang="en-US">Potential aggregate offering price</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_SaleOfStockConsiderationReceivedOnTransactions" xlink:to="lab_thtx_SaleOfStockConsiderationReceivedOnTransactions" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_SaleOfStockConsiderationReceivedOnTransactions" xml:lang="en-US">Sale of stock consideration received on transactions.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_CompensationExpenseForReserveShare" xlink:label="loc_thtx_CompensationExpenseForReserveShare" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_CompensationExpenseForReserveShare" xml:lang="en-US">Compensation Expense For Reserve Share</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_CompensationExpenseForReserveShare" xml:lang="en-US">Compensation Expense For Reserve Share</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_CompensationExpenseForReserveShare" xlink:to="lab_thtx_CompensationExpenseForReserveShare" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_CompensationExpenseForReserveShare" xml:lang="en-US">Compensation Expense For Reserve Share.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_RemainingSharesReservedForIssueUnderOptions" xlink:label="loc_thtx_RemainingSharesReservedForIssueUnderOptions" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_RemainingSharesReservedForIssueUnderOptions" xml:lang="en-US">Remaining Shares Reserved For Issue Under Options</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_RemainingSharesReservedForIssueUnderOptions" xml:lang="en-US">Remaining Shares Reserved For Issue Under Options</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_RemainingSharesReservedForIssueUnderOptions" xlink:to="lab_thtx_RemainingSharesReservedForIssueUnderOptions" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_RemainingSharesReservedForIssueUnderOptions" xml:lang="en-US">Remaining Shares Reserved For Issue Under Options.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_UnrecognizedCompensationCost" xlink:label="loc_thtx_UnrecognizedCompensationCost" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_UnrecognizedCompensationCost" xml:lang="en-US">Unrecognized Compensation Cost</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_UnrecognizedCompensationCost" xml:lang="en-US">Unrecognized Compensation Cost</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_UnrecognizedCompensationCost" xlink:to="lab_thtx_UnrecognizedCompensationCost" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_UnrecognizedCompensationCost" xml:lang="en-US">Unrecognized compensation cost.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_PercentageOfOwnershipHoldingCommonShares" xlink:label="loc_thtx_PercentageOfOwnershipHoldingCommonShares" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_PercentageOfOwnershipHoldingCommonShares" xml:lang="en-US">Percentage Of Ownership Holding Common Shares</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_PercentageOfOwnershipHoldingCommonShares" xml:lang="en-US">Percentage Of Ownership Holding Common Shares</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_PercentageOfOwnershipHoldingCommonShares" xlink:to="lab_thtx_PercentageOfOwnershipHoldingCommonShares" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_PercentageOfOwnershipHoldingCommonShares" xml:lang="en-US">Percentage of ownership holding common shares.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_PercentageOfOwnershipOfTheInvestor" xlink:label="loc_thtx_PercentageOfOwnershipOfTheInvestor" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_PercentageOfOwnershipOfTheInvestor" xml:lang="en-US">Percentage Of Ownership Of The Investor</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_PercentageOfOwnershipOfTheInvestor" xml:lang="en-US">Percentage Of Ownership Of The Investor</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_PercentageOfOwnershipOfTheInvestor" xlink:to="lab_thtx_PercentageOfOwnershipOfTheInvestor" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_PercentageOfOwnershipOfTheInvestor" xml:lang="en-US">Percentage of ownership of the investor.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_ClassOfWarrantOrRightExpirationDate" xlink:label="loc_thtx_ClassOfWarrantOrRightExpirationDate" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_ClassOfWarrantOrRightExpirationDate" xml:lang="en-US">Class Of Warrant Or Right Expiration Date</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_ClassOfWarrantOrRightExpirationDate" xml:lang="en-US">Class Of Warrant Or Right Expiration Date</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_ClassOfWarrantOrRightExpirationDate" xlink:to="lab_thtx_ClassOfWarrantOrRightExpirationDate" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_ClassOfWarrantOrRightExpirationDate" xml:lang="en-US">Class of warrant or right expiration date.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProceedsFromExerciseOfWarrants" xlink:label="loc_ifrs-full_ProceedsFromExerciseOfWarrants" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ProceedsFromExerciseOfWarrants" xml:lang="en-US">Proceeds from exercise of warrants</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_ProceedsFromExerciseOfWarrants" xml:lang="en-US">Proceeds from exercise of warrants</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProceedsFromExerciseOfWarrants" xlink:to="lab_ifrs-full_ProceedsFromExerciseOfWarrants" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_ClassOfWarrantOrRightNumberOfSecuritiesExercised" xlink:label="loc_thtx_ClassOfWarrantOrRightNumberOfSecuritiesExercised" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_ClassOfWarrantOrRightNumberOfSecuritiesExercised" xml:lang="en-US">Class Of Warrant Or Right Number Of Securities Exercised</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_ClassOfWarrantOrRightNumberOfSecuritiesExercised" xml:lang="en-US">Class Of Warrant Or Right Exercised</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_ClassOfWarrantOrRightNumberOfSecuritiesExercised" xlink:to="lab_thtx_ClassOfWarrantOrRightNumberOfSecuritiesExercised" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_ClassOfWarrantOrRightNumberOfSecuritiesExercised" xml:lang="en-US">Class of warrant or right number of securities exercised.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_PotentialShareIssueInTheFutureOnExerciseOfWarrants" xlink:label="loc_thtx_PotentialShareIssueInTheFutureOnExerciseOfWarrants" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_PotentialShareIssueInTheFutureOnExerciseOfWarrants" xml:lang="en-US">Potential Share Issue In The Future On Exercise Of Warrants</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_PotentialShareIssueInTheFutureOnExerciseOfWarrants" xml:lang="en-US">Potential share issue in the future on exercise of warrants</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_PotentialShareIssueInTheFutureOnExerciseOfWarrants" xlink:to="lab_thtx_PotentialShareIssueInTheFutureOnExerciseOfWarrants" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_PotentialShareIssueInTheFutureOnExerciseOfWarrants" xml:lang="en-US">Potential share issue in the future on exercise of warrants.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_StockIssuableAsAPercentageOfTotalSharesIssuedAndOutstanding" xlink:label="loc_thtx_StockIssuableAsAPercentageOfTotalSharesIssuedAndOutstanding" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_StockIssuableAsAPercentageOfTotalSharesIssuedAndOutstanding" xml:lang="en-US">Stock Issuable As A Percentage Of Total Shares Issued And Outstanding</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_StockIssuableAsAPercentageOfTotalSharesIssuedAndOutstanding" xml:lang="en-US">Stock issuable as a percentage of total shares issued and outstanding</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_StockIssuableAsAPercentageOfTotalSharesIssuedAndOutstanding" xlink:to="lab_thtx_StockIssuableAsAPercentageOfTotalSharesIssuedAndOutstanding" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_StockIssuableAsAPercentageOfTotalSharesIssuedAndOutstanding" xml:lang="en-US">Stock issuable as a percentage of total shares issued and outstanding.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DeferredFinancingCostsWrittenDown" xlink:label="loc_thtx_DeferredFinancingCostsWrittenDown" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DeferredFinancingCostsWrittenDown" xml:lang="en-US">Deferred Financing Costs Written Down</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_DeferredFinancingCostsWrittenDown" xml:lang="en-US">Deferred financing costs written down</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DeferredFinancingCostsWrittenDown" xlink:to="lab_thtx_DeferredFinancingCostsWrittenDown" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DeferredFinancingCostsWrittenDown" xml:lang="en-US">Deferred financing costs written down.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_ClassOfWarrantsOrRightsOutstanding" xlink:label="loc_thtx_ClassOfWarrantsOrRightsOutstanding" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_ClassOfWarrantsOrRightsOutstanding" xml:lang="en-US">Class Of Warrants Or Rights Outstanding</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_ClassOfWarrantsOrRightsOutstanding" xml:lang="en-US">Class of warrants or rights outstanding</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_ClassOfWarrantsOrRightsOutstanding" xlink:to="lab_thtx_ClassOfWarrantsOrRightsOutstanding" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_ClassOfWarrantsOrRightsOutstanding" xml:lang="en-US">Class of warrants or rights outstanding.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DeferredFinancingCostsOnTheLoanFacility" xlink:label="loc_thtx_DeferredFinancingCostsOnTheLoanFacility" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DeferredFinancingCostsOnTheLoanFacility" xml:lang="en-US">Deferred Financing Costs On The Loan Facility</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_DeferredFinancingCostsOnTheLoanFacility" xml:lang="en-US">Deferred financing costs on the loan facility</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DeferredFinancingCostsOnTheLoanFacility" xlink:to="lab_thtx_DeferredFinancingCostsOnTheLoanFacility" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DeferredFinancingCostsOnTheLoanFacility" xml:lang="en-US">Deferred financing costs on the loan facility.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_TransactionCostsAllocatedToTheLoanFacility" xlink:label="loc_thtx_TransactionCostsAllocatedToTheLoanFacility" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_TransactionCostsAllocatedToTheLoanFacility" xml:lang="en-US">Transaction Costs Allocated To The Loan Facility</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_TransactionCostsAllocatedToTheLoanFacility" xml:lang="en-US">Transaction costs allocated to the loan facility</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_TransactionCostsAllocatedToTheLoanFacility" xlink:to="lab_thtx_TransactionCostsAllocatedToTheLoanFacility" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_TransactionCostsAllocatedToTheLoanFacility" xml:lang="en-US">Transaction costs allocated to the loan facility.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_TransactionCostsOfWarrantsIssued" xlink:label="loc_thtx_TransactionCostsOfWarrantsIssued" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_TransactionCostsOfWarrantsIssued" xml:lang="en-US">Transaction Costs Of Warrants Issued</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_TransactionCostsOfWarrantsIssued" xml:lang="en-US">Transaction cost of warrants issued</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_TransactionCostsOfWarrantsIssued" xlink:to="lab_thtx_TransactionCostsOfWarrantsIssued" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_TransactionCostsOfWarrantsIssued" xml:lang="en-US">Transaction costs of warrants issued.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GainsLossesRecognisedInProfitOrLossOnFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedUponInitialRecognitionOrSubsequently" xlink:label="loc_ifrs-full_GainsLossesRecognisedInProfitOrLossOnFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedUponInitialRecognitionOrSubsequently" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_GainsLossesRecognisedInProfitOrLossOnFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedUponInitialRecognitionOrSubsequently" xml:lang="en-US">Gains (losses) recognised in profit or loss on financial liabilities at fair value through profit or loss, designated upon initial recognition or subsequently</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_GainsLossesRecognisedInProfitOrLossOnFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedUponInitialRecognitionOrSubsequently" xml:lang="en-US">Gain (loss) due to changes in fair value of financial liabilities at fair value through profit or loss</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GainsLossesRecognisedInProfitOrLossOnFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedUponInitialRecognitionOrSubsequently" xlink:to="lab_ifrs-full_GainsLossesRecognisedInProfitOrLossOnFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedUponInitialRecognitionOrSubsequently" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_IncreaseInTheFairValueOfLiabilityRecorded" xlink:label="loc_thtx_IncreaseInTheFairValueOfLiabilityRecorded" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_IncreaseInTheFairValueOfLiabilityRecorded" xml:lang="en-US">Increase In The Fair Value Of Liability Recorded</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_IncreaseInTheFairValueOfLiabilityRecorded" xml:lang="en-US">Increase in the fair value of liability recorded</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_IncreaseInTheFairValueOfLiabilityRecorded" xlink:to="lab_thtx_IncreaseInTheFairValueOfLiabilityRecorded" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_IncreaseInTheFairValueOfLiabilityRecorded" xml:lang="en-US">Increase in the fair value of liability recorded.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_GainLossOnDebtModification" xlink:label="loc_thtx_GainLossOnDebtModification" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_GainLossOnDebtModification" xml:lang="en-US">Gain Loss On Debt Modification</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_GainLossOnDebtModification" xml:lang="en-US">Gain (loss) on debt modification</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_GainLossOnDebtModification" xlink:to="lab_thtx_GainLossOnDebtModification" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_GainLossOnDebtModification" xml:lang="en-US">Gain loss on debt modification.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_TermOfWarrants" xlink:label="loc_thtx_TermOfWarrants" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_TermOfWarrants" xml:lang="en-US">Term Of Warrants</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_TermOfWarrants" xml:lang="en-US">Term of warrants</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_TermOfWarrants" xlink:to="lab_thtx_TermOfWarrants" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_TermOfWarrants" xml:lang="en-US">Term of warrants.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_ClassOfNumberWarrantsOrRightsIssuedDuringThePeriod" xlink:label="loc_thtx_ClassOfNumberWarrantsOrRightsIssuedDuringThePeriod" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_ClassOfNumberWarrantsOrRightsIssuedDuringThePeriod" xml:lang="en-US">Class Of Number Warrants Or Rights Issued During The Period</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_ClassOfNumberWarrantsOrRightsIssuedDuringThePeriod" xml:lang="en-US">Class of number warrants or rights issued during the period</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_ClassOfNumberWarrantsOrRightsIssuedDuringThePeriod" xlink:to="lab_thtx_ClassOfNumberWarrantsOrRightsIssuedDuringThePeriod" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_ClassOfNumberWarrantsOrRightsIssuedDuringThePeriod" xml:lang="en-US">Class of number warrants or rights issued during the period.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_ProceedsFromTheIssuanceOfCommonSharesAndWarrants" xlink:label="loc_thtx_ProceedsFromTheIssuanceOfCommonSharesAndWarrants" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_ProceedsFromTheIssuanceOfCommonSharesAndWarrants" xml:lang="en-US">Proceeds From The Issuance Of Common Shares And Warrants</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_ProceedsFromTheIssuanceOfCommonSharesAndWarrants" xml:lang="en-US">Proceeds from the issuance of common shares and warrants</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_ProceedsFromTheIssuanceOfCommonSharesAndWarrants" xlink:to="lab_thtx_ProceedsFromTheIssuanceOfCommonSharesAndWarrants" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_ProceedsFromTheIssuanceOfCommonSharesAndWarrants" xml:lang="en-US">Proceeds from the issuance of common shares and warrants.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_ClassOfWarrantsOrRightsExercisePricePerShare" xlink:label="loc_thtx_ClassOfWarrantsOrRightsExercisePricePerShare" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_ClassOfWarrantsOrRightsExercisePricePerShare" xml:lang="en-US">Class Of Warrants Or Rights Exercise Price Per Share</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_ClassOfWarrantsOrRightsExercisePricePerShare" xml:lang="en-US">Class of warrants or rights exercise price per share</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_ClassOfWarrantsOrRightsExercisePricePerShare" xlink:to="lab_thtx_ClassOfWarrantsOrRightsExercisePricePerShare" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_ClassOfWarrantsOrRightsExercisePricePerShare" xml:lang="en-US">Class of warrants or rights exercise price per share.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_PricePerShareForTheSettlementOfCashsettledForwardStockContracts" xlink:label="loc_thtx_PricePerShareForTheSettlementOfCashsettledForwardStockContracts" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_PricePerShareForTheSettlementOfCashsettledForwardStockContracts" xml:lang="en-US">Price Per Share For The Settlement Of Cashsettled Forward Stock Contracts</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_PricePerShareForTheSettlementOfCashsettledForwardStockContracts" xml:lang="en-US">Price per share for the settlement of cash-settled forward stock contracts</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_PricePerShareForTheSettlementOfCashsettledForwardStockContracts" xlink:to="lab_thtx_PricePerShareForTheSettlementOfCashsettledForwardStockContracts" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_PricePerShareForTheSettlementOfCashsettledForwardStockContracts" xml:lang="en-US">Price per share for the settlement of cash-settled forward stock contracts.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CategoriesOfRelatedPartiesAxis" xlink:label="loc_ifrs-full_CategoriesOfRelatedPartiesAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_CategoriesOfRelatedPartiesAxis" xml:lang="en-US">Categories of related parties [axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CategoriesOfRelatedPartiesAxis" xlink:to="lab_ifrs-full_CategoriesOfRelatedPartiesAxis" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CategoriesOfRelatedPartiesDomain" xlink:label="loc_ifrs-full_CategoriesOfRelatedPartiesDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_CategoriesOfRelatedPartiesDomain" xml:lang="en-US">Categories of related parties [domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CategoriesOfRelatedPartiesDomain" xlink:to="lab_ifrs-full_CategoriesOfRelatedPartiesDomain" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_EventAxis" xlink:label="loc_thtx_EventAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_EventAxis" xml:lang="en-US">Event [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_EventAxis" xlink:to="lab_thtx_EventAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_EventAxis" xml:lang="en-US">Event [Axis].</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_EventDomain" xlink:label="loc_thtx_EventDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_EventDomain" xml:lang="en-US">Event [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_EventDomain" xlink:to="lab_thtx_EventDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_EventDomain" xml:lang="en-US">Event [Domain].</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_MeasurementAxis" xlink:label="loc_ifrs-full_MeasurementAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_MeasurementAxis" xml:lang="en-US">Measurement [axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_MeasurementAxis" xlink:to="lab_ifrs-full_MeasurementAxis" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_MeasurementDomain" xlink:label="loc_ifrs-full_MeasurementDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_MeasurementDomain" xml:lang="en-US">Measurement [domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_MeasurementDomain" xlink:to="lab_ifrs-full_MeasurementDomain" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_IssuedCapitalAxis" xlink:label="loc_thtx_IssuedCapitalAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_IssuedCapitalAxis" xml:lang="en-US">Issued Capital [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_IssuedCapitalAxis" xlink:to="lab_thtx_IssuedCapitalAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_IssuedCapitalAxis" xml:lang="en-US">Issued capital.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_IssuedCapitalDomain" xlink:label="loc_thtx_IssuedCapitalDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_IssuedCapitalDomain" xml:lang="en-US">Issued Capital [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_IssuedCapitalDomain" xlink:to="lab_thtx_IssuedCapitalDomain" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_PublicOfferingMember" xlink:label="loc_thtx_PublicOfferingMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_PublicOfferingMember" xml:lang="en-US">Public Offering [Member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_PublicOfferingMember" xlink:to="lab_thtx_PublicOfferingMember" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_OverallotmentMember" xlink:label="loc_thtx_OverallotmentMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_OverallotmentMember" xml:lang="en-US">Overallotment [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_OverallotmentMember" xml:lang="en-US">Over-allotment [member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_OverallotmentMember" xlink:to="lab_thtx_OverallotmentMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_OverallotmentMember" xml:lang="en-US">Over-allotment.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_PrivatePlacementsMember" xlink:label="loc_thtx_PrivatePlacementsMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_PrivatePlacementsMember" xml:lang="en-US">Private Placements [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_PrivatePlacementsMember" xml:lang="en-US">Private Placement [Member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_PrivatePlacementsMember" xlink:to="lab_thtx_PrivatePlacementsMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_PrivatePlacementsMember" xml:lang="en-US">Private Placements.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_ProgramNameAxis" xlink:label="loc_thtx_ProgramNameAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_ProgramNameAxis" xml:lang="en-US">Program Name [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_ProgramNameAxis" xlink:to="lab_thtx_ProgramNameAxis" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_ProgramNameDomain" xlink:label="loc_thtx_ProgramNameDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_ProgramNameDomain" xml:lang="en-US">Program Name [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_ProgramNameDomain" xlink:to="lab_thtx_ProgramNameDomain" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_AtmProgramMember" xlink:label="loc_thtx_AtmProgramMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_AtmProgramMember" xml:lang="en-US">ATM program [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_AtmProgramMember" xml:lang="en-US">ATM program [Member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_AtmProgramMember" xlink:to="lab_thtx_AtmProgramMember" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_AgreementAxis" xlink:label="loc_thtx_AgreementAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_AgreementAxis" xml:lang="en-US">Agreement [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_AgreementAxis" xlink:to="lab_thtx_AgreementAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_AgreementAxis" xml:lang="en-US">Agreement.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_AgreementDomain" xlink:label="loc_thtx_AgreementDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_AgreementDomain" xml:lang="en-US">Agreement [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_AgreementDomain" xlink:to="lab_thtx_AgreementDomain" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_FifthAmendmentOfTheLoanFacilityMember" xlink:label="loc_thtx_FifthAmendmentOfTheLoanFacilityMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_FifthAmendmentOfTheLoanFacilityMember" xml:lang="en-US">Fifth Amendment Of The Loan Facility [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_FifthAmendmentOfTheLoanFacilityMember" xml:lang="en-US">Fifth Amendment of the Loan facility [member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_FifthAmendmentOfTheLoanFacilityMember" xlink:to="lab_thtx_FifthAmendmentOfTheLoanFacilityMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_FifthAmendmentOfTheLoanFacilityMember" xml:lang="en-US">Fifth amendment of the loan facility member.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CategoriesOfFinancialLiabilitiesAxis" xlink:label="loc_ifrs-full_CategoriesOfFinancialLiabilitiesAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_CategoriesOfFinancialLiabilitiesAxis" xml:lang="en-US">Categories of financial liabilities [axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CategoriesOfFinancialLiabilitiesAxis" xlink:to="lab_ifrs-full_CategoriesOfFinancialLiabilitiesAxis" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CategoriesOfFinancialLiabilitiesDomain" xlink:label="loc_ifrs-full_CategoriesOfFinancialLiabilitiesDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_CategoriesOfFinancialLiabilitiesDomain" xml:lang="en-US">Categories of financial liabilities [domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CategoriesOfFinancialLiabilitiesDomain" xlink:to="lab_ifrs-full_CategoriesOfFinancialLiabilitiesDomain" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember" xlink:label="loc_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember" xml:lang="en-US">Financial liabilities at fair value through profit or loss, category [member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember" xml:lang="en-US">Financial liabilities at fair value through profit or loss, category [member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember" xml:lang="en-US">Financial liabilities at fair value through profit or loss, category [member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember" xlink:to="lab_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_ClassOfWarrantsOrRightsAxis" xlink:label="loc_thtx_ClassOfWarrantsOrRightsAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_ClassOfWarrantsOrRightsAxis" xml:lang="en-US">Class Of Warrants Or Rights [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_ClassOfWarrantsOrRightsAxis" xlink:to="lab_thtx_ClassOfWarrantsOrRightsAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_ClassOfWarrantsOrRightsAxis" xml:lang="en-US">Class of warrants or rights.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_ClassOfWarrantsOrRightsDomain" xlink:label="loc_thtx_ClassOfWarrantsOrRightsDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_ClassOfWarrantsOrRightsDomain" xml:lang="en-US">Class Of Warrants Or Rights [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_ClassOfWarrantsOrRightsDomain" xlink:to="lab_thtx_ClassOfWarrantsOrRightsDomain" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_NonVotingSubscriptionReceiptsMember" xlink:label="loc_thtx_NonVotingSubscriptionReceiptsMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_NonVotingSubscriptionReceiptsMember" xml:lang="en-US">Non Voting Subscription Receipts [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_NonVotingSubscriptionReceiptsMember" xml:lang="en-US">Non-voting Subscription Receipts [Member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_NonVotingSubscriptionReceiptsMember" xlink:to="lab_thtx_NonVotingSubscriptionReceiptsMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_NonVotingSubscriptionReceiptsMember" xml:lang="en-US">Non voting subscription receipts.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_InvesteeAxis" xlink:label="loc_thtx_InvesteeAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_InvesteeAxis" xml:lang="en-US">Investee [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_InvesteeAxis" xlink:to="lab_thtx_InvesteeAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_InvesteeAxis" xml:lang="en-US">Investee axis.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_InvesteeDomain" xlink:label="loc_thtx_InvesteeDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_InvesteeDomain" xml:lang="en-US">Investee [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_InvesteeDomain" xlink:to="lab_thtx_InvesteeDomain" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_AffiliatesOfMarathonAssetManagementMember" xlink:label="loc_thtx_AffiliatesOfMarathonAssetManagementMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_AffiliatesOfMarathonAssetManagementMember" xml:lang="en-US">Affiliates Of Marathon Asset Management [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_AffiliatesOfMarathonAssetManagementMember" xml:lang="en-US">Affiliates of Marathon Asset Management [member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_AffiliatesOfMarathonAssetManagementMember" xlink:to="lab_thtx_AffiliatesOfMarathonAssetManagementMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_AffiliatesOfMarathonAssetManagementMember" xml:lang="en-US">Affiliates of Marathon asset management.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_InvestmentQuebecMember" xlink:label="loc_thtx_InvestmentQuebecMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_InvestmentQuebecMember" xml:lang="en-US">Investment Quebec [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_InvestmentQuebecMember" xml:lang="en-US">Investment Quebec [Member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_InvestmentQuebecMember" xlink:to="lab_thtx_InvestmentQuebecMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_InvestmentQuebecMember" xml:lang="en-US">Investment quebec member.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DisclosureInTabularFormOfSignificantUnobservableInputsUsedInTheMeasurementOfFairValueOfWarrantLiabilitiesTable" xlink:label="loc_thtx_DisclosureInTabularFormOfSignificantUnobservableInputsUsedInTheMeasurementOfFairValueOfWarrantLiabilitiesTable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DisclosureInTabularFormOfSignificantUnobservableInputsUsedInTheMeasurementOfFairValueOfWarrantLiabilitiesTable" xml:lang="en-US">Disclosure In Tabular Form Of Significant Unobservable Inputs Used In The Measurement Of Fair Value Of Warrant Liabilities [Table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DisclosureInTabularFormOfSignificantUnobservableInputsUsedInTheMeasurementOfFairValueOfWarrantLiabilitiesTable" xlink:to="lab_thtx_DisclosureInTabularFormOfSignificantUnobservableInputsUsedInTheMeasurementOfFairValueOfWarrantLiabilitiesTable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DisclosureInTabularFormOfSignificantUnobservableInputsUsedInTheMeasurementOfFairValueOfWarrantLiabilitiesTable" xml:lang="en-US">Disclosure in tabular form of significant unobservable inputs used in the measurement of fair value of warrant liabilities.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_UnobservableInputsAxis" xlink:label="loc_ifrs-full_UnobservableInputsAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_UnobservableInputsAxis" xml:lang="en-US">Unobservable inputs [axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_UnobservableInputsAxis" xlink:to="lab_ifrs-full_UnobservableInputsAxis" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_UnobservableInputsDomain" xlink:label="loc_ifrs-full_UnobservableInputsDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_UnobservableInputsDomain" xml:lang="en-US">Unobservable inputs [domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_UnobservableInputsDomain" xlink:to="lab_ifrs-full_UnobservableInputsDomain" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_ExercisePriceToAcquireOneCommonShareMember" xlink:label="loc_thtx_ExercisePriceToAcquireOneCommonShareMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_ExercisePriceToAcquireOneCommonShareMember" xml:lang="en-US">Exercise Price To Acquire One Common Share [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_ExercisePriceToAcquireOneCommonShareMember" xml:lang="en-US">Exercise price to acquire one common share with four Marathon Warrants [member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_ExercisePriceToAcquireOneCommonShareMember" xlink:to="lab_thtx_ExercisePriceToAcquireOneCommonShareMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_ExercisePriceToAcquireOneCommonShareMember" xml:lang="en-US">Exercise price to acquire one common share.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_SharePriceMember" xlink:label="loc_thtx_SharePriceMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_SharePriceMember" xml:lang="en-US">Share Price [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_SharePriceMember" xml:lang="en-US">Share price [member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_SharePriceMember" xlink:to="lab_thtx_SharePriceMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_SharePriceMember" xml:lang="en-US">Share price.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_AverageOptionLifeMember" xlink:label="loc_thtx_AverageOptionLifeMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_AverageOptionLifeMember" xml:lang="en-US">Average Option Life [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_AverageOptionLifeMember" xml:lang="en-US">Average option life in years [member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_AverageOptionLifeMember" xlink:to="lab_thtx_AverageOptionLifeMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_AverageOptionLifeMember" xml:lang="en-US">Average option life.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_HistoricalVolatilityForSharesMeasurementInputMember" xlink:label="loc_ifrs-full_HistoricalVolatilityForSharesMeasurementInputMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_HistoricalVolatilityForSharesMeasurementInputMember" xml:lang="en-US">Historical volatility for shares, measurement input [member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_HistoricalVolatilityForSharesMeasurementInputMember" xml:lang="en-US">Expected volatility [member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_HistoricalVolatilityForSharesMeasurementInputMember" xml:lang="en-US">Historical volatility for shares, measurement input [member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_HistoricalVolatilityForSharesMeasurementInputMember" xlink:to="lab_ifrs-full_HistoricalVolatilityForSharesMeasurementInputMember" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InterestRateMeasurementInputMember" xlink:label="loc_ifrs-full_InterestRateMeasurementInputMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_InterestRateMeasurementInputMember" xml:lang="en-US">Interest rate, measurement input [member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_InterestRateMeasurementInputMember" xml:lang="en-US">Risk-free&#160;interest rate [member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_InterestRateMeasurementInputMember" xml:lang="en-US">Interest rate, measurement</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InterestRateMeasurementInputMember" xlink:to="lab_ifrs-full_InterestRateMeasurementInputMember" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DisclosureInTabularFormOfSignificantUnobservableInputsUsedInTheMeasurementOfFairValueOfWarrantLiabilitiesLineItems" xlink:label="loc_thtx_DisclosureInTabularFormOfSignificantUnobservableInputsUsedInTheMeasurementOfFairValueOfWarrantLiabilitiesLineItems" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DisclosureInTabularFormOfSignificantUnobservableInputsUsedInTheMeasurementOfFairValueOfWarrantLiabilitiesLineItems" xml:lang="en-US">Disclosure In Tabular Form Of Significant Unobservable Inputs Used In The Measurement Of Fair Value Of Warrant Liabilities [Line Items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DisclosureInTabularFormOfSignificantUnobservableInputsUsedInTheMeasurementOfFairValueOfWarrantLiabilitiesLineItems" xlink:to="lab_thtx_DisclosureInTabularFormOfSignificantUnobservableInputsUsedInTheMeasurementOfFairValueOfWarrantLiabilitiesLineItems" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DisclosureInTabularFormOfSignificantUnobservableInputsUsedInTheMeasurementOfFairValueOfWarrantLiabilitiesLineItems" xml:lang="en-US">Disclosure in tabular form of significant unobservable inputs used in the measurement of fair value of warrant liabilities.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_SignificantUnobservableInputLiabilities" xlink:label="loc_ifrs-full_SignificantUnobservableInputLiabilities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_SignificantUnobservableInputLiabilities" xml:lang="en-US">Significant unobservable input, liabilities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_SignificantUnobservableInputLiabilities" xml:lang="en-US">Measurement&#160;date</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_SignificantUnobservableInputLiabilities" xml:lang="en-US">Expected volatility unobservable input, liabilities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_SignificantUnobservableInputLiabilities" xlink:to="lab_ifrs-full_SignificantUnobservableInputLiabilities" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DisclosureOfTheModelUsedToDetermineFairValueOfOptionsTable" xlink:label="loc_thtx_DisclosureOfTheModelUsedToDetermineFairValueOfOptionsTable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DisclosureOfTheModelUsedToDetermineFairValueOfOptionsTable" xml:lang="en-US">Disclosure Of The Model Used To Determine Fair Value Of Options [Table]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_DisclosureOfTheModelUsedToDetermineFairValueOfOptionsTable" xml:lang="en-US">Disclosure Of The Model Used To Determine Fair Value Of Options [Table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DisclosureOfTheModelUsedToDetermineFairValueOfOptionsTable" xlink:to="lab_thtx_DisclosureOfTheModelUsedToDetermineFairValueOfOptionsTable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DisclosureOfTheModelUsedToDetermineFairValueOfOptionsTable" xml:lang="en-US">Disclosure of the model used to determine Fair value of options [Table].</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DisclosureOfTheModelUsedToDetermineFairValueOfOptionsLineItems" xlink:label="loc_thtx_DisclosureOfTheModelUsedToDetermineFairValueOfOptionsLineItems" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DisclosureOfTheModelUsedToDetermineFairValueOfOptionsLineItems" xml:lang="en-US">Disclosure Of The Model Used To Determine Fair Value Of Options [Line Items]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_DisclosureOfTheModelUsedToDetermineFairValueOfOptionsLineItems" xml:lang="en-US">Disclosure Of The Model Used To Determine Fair Value Of Options [Line Items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DisclosureOfTheModelUsedToDetermineFairValueOfOptionsLineItems" xlink:to="lab_thtx_DisclosureOfTheModelUsedToDetermineFairValueOfOptionsLineItems" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DisclosureOfTheModelUsedToDetermineFairValueOfOptionsLineItems" xml:lang="en-US">Disclosure Of The Model Used To Determine Fair Value Of Options.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfRiskFreeInterestRateShareOptionsGranted" xlink:label="loc_ifrs-full_DescriptionOfRiskFreeInterestRateShareOptionsGranted" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DescriptionOfRiskFreeInterestRateShareOptionsGranted" xml:lang="en-US">Risk free interest rate, share options granted</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DescriptionOfRiskFreeInterestRateShareOptionsGranted" xml:lang="en-US">Risk-free interest rate</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfRiskFreeInterestRateShareOptionsGranted" xlink:to="lab_ifrs-full_DescriptionOfRiskFreeInterestRateShareOptionsGranted" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfExpectedVolatilityShareOptionsGranted" xlink:label="loc_ifrs-full_DescriptionOfExpectedVolatilityShareOptionsGranted" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DescriptionOfExpectedVolatilityShareOptionsGranted" xml:lang="en-US">Expected volatility, share options granted</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DescriptionOfExpectedVolatilityShareOptionsGranted" xml:lang="en-US">Expected volatility</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfExpectedVolatilityShareOptionsGranted" xlink:to="lab_ifrs-full_DescriptionOfExpectedVolatilityShareOptionsGranted" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ExercisePriceShareOptionsGranted2019" xlink:label="loc_ifrs-full_ExercisePriceShareOptionsGranted2019" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ExercisePriceShareOptionsGranted2019" xml:lang="en-US">Exercise price, share options granted</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_ExercisePriceShareOptionsGranted2019" xml:lang="en-US">Option exercise price</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_ExercisePriceShareOptionsGranted2019" xml:lang="en-US">Option exercise price</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ExercisePriceShareOptionsGranted2019" xlink:to="lab_ifrs-full_ExercisePriceShareOptionsGranted2019" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_WeightedAverageSharePriceShareOptionsGranted2019" xlink:label="loc_ifrs-full_WeightedAverageSharePriceShareOptionsGranted2019" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_WeightedAverageSharePriceShareOptionsGranted2019" xml:lang="en-US">Weighted average share price, share options granted</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_WeightedAverageSharePriceShareOptionsGranted2019" xml:lang="en-US">Grant-date share price</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_WeightedAverageSharePriceShareOptionsGranted2019" xlink:to="lab_ifrs-full_WeightedAverageSharePriceShareOptionsGranted2019" />
<loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_CurrencyAxis" xlink:label="loc_srt_CurrencyAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_srt_CurrencyAxis" xml:lang="en-US">Currency [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_CurrencyAxis" xlink:to="lab_srt_CurrencyAxis" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/currency/2024/currency-2024.xsd#currency_AllCurrenciesDomain" xlink:label="loc_currency_AllCurrenciesDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_currency_AllCurrenciesDomain" xml:lang="en-US">All Currencies [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_currency_AllCurrenciesDomain" xlink:to="lab_currency_AllCurrenciesDomain" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/currency/2024/currency-2024.xsd#currency_CAD" xlink:label="loc_currency_CAD" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_currency_CAD" xml:lang="en-US">Canada, Dollars</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_currency_CAD" xml:lang="en-US">CA$</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/definitionGuidance" xlink:label="lab_currency_CAD" xml:lang="en-US">CA$</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_currency_CAD" xml:lang="en-US">CA$ &#8211; US$</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_currency_CAD" xlink:to="lab_currency_CAD" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NumberOfOutstandingShareOptions" xlink:label="loc_ifrs-full_NumberOfOutstandingShareOptions" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_NumberOfOutstandingShareOptions" xml:lang="en-US">Number of share options outstanding in share-based payment arrangement</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_ifrs-full_NumberOfOutstandingShareOptions" xml:lang="en-US">Number of options beginning balance</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_ifrs-full_NumberOfOutstandingShareOptions" xml:lang="en-US">Number of options ending balance</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_NumberOfOutstandingShareOptions" xml:lang="en-US">Number&#160;of options outstanding</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NumberOfOutstandingShareOptions" xlink:to="lab_ifrs-full_NumberOfOutstandingShareOptions" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement" xlink:label="loc_ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement" xml:lang="en-US">Number of share options granted in share-based payment arrangement</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement" xml:lang="en-US">Number of options, granted</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement" xml:lang="en-US">Number of Options granted</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement" xlink:to="lab_ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_WeightedAverageExercisePriceOfShareOptionsGrantedInSharebasedPaymentArrangement2019" xlink:label="loc_ifrs-full_WeightedAverageExercisePriceOfShareOptionsGrantedInSharebasedPaymentArrangement2019" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsGrantedInSharebasedPaymentArrangement2019" xml:lang="en-US">Weighted average exercise price of share options granted in share-based payment arrangement</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsGrantedInSharebasedPaymentArrangement2019" xml:lang="en-US">Weighted average, granted</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_WeightedAverageExercisePriceOfShareOptionsGrantedInSharebasedPaymentArrangement2019" xlink:to="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsGrantedInSharebasedPaymentArrangement2019" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement2019" xlink:label="loc_ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement2019" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement2019" xml:lang="en-US">Weighted average exercise price of share options outstanding in share-based payment arrangement</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement2019" xml:lang="en-US">Weighted average ending balance</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement2019" xml:lang="en-US">Weighted average beginning balance</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement2019" xml:lang="en-US">Weighted average exercise price</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement2019" xlink:to="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement2019" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NumberOfShareOptionsExercisableInSharebasedPaymentArrangement" xlink:label="loc_ifrs-full_NumberOfShareOptionsExercisableInSharebasedPaymentArrangement" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_NumberOfShareOptionsExercisableInSharebasedPaymentArrangement" xml:lang="en-US">Number of share options exercisable in share-based payment arrangement</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_NumberOfShareOptionsExercisableInSharebasedPaymentArrangement" xml:lang="en-US">Options exercisable outstanding</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NumberOfShareOptionsExercisableInSharebasedPaymentArrangement" xlink:to="lab_ifrs-full_NumberOfShareOptionsExercisableInSharebasedPaymentArrangement" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_WeightedAverageExercisePriceOfShareOptionsExercisableInSharebasedPaymentArrangement2019" xlink:label="loc_ifrs-full_WeightedAverageExercisePriceOfShareOptionsExercisableInSharebasedPaymentArrangement2019" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsExercisableInSharebasedPaymentArrangement2019" xml:lang="en-US">Weighted average exercise price of share options exercisable in share-based payment arrangement</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsExercisableInSharebasedPaymentArrangement2019" xml:lang="en-US">Weighted average options exercisable</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_WeightedAverageExercisePriceOfShareOptionsExercisableInSharebasedPaymentArrangement2019" xlink:to="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsExercisableInSharebasedPaymentArrangement2019" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_NumberOfShareOptionsForfeitedAndExpiredInShareBasedPaymentArrangement" xlink:label="loc_thtx_NumberOfShareOptionsForfeitedAndExpiredInShareBasedPaymentArrangement" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_NumberOfShareOptionsForfeitedAndExpiredInShareBasedPaymentArrangement" xml:lang="en-US">Number Of Share Options Forfeited and Expired In Share based Payment Arrangement</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_NumberOfShareOptionsForfeitedAndExpiredInShareBasedPaymentArrangement" xml:lang="en-US">Number of options,Forfeited&#160;and expired &#8211; CAD</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_NumberOfShareOptionsForfeitedAndExpiredInShareBasedPaymentArrangement" xlink:to="lab_thtx_NumberOfShareOptionsForfeitedAndExpiredInShareBasedPaymentArrangement" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_NumberOfShareOptionsForfeitedAndExpiredInShareBasedPaymentArrangement" xml:lang="en-US">Number Of Share Options Forfeited and Expired In Share based Payment Arrangement.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_WeightedAverageShareOptionsForfeitedAndExpiredInShareBasedPaymentArrangement" xlink:label="loc_thtx_WeightedAverageShareOptionsForfeitedAndExpiredInShareBasedPaymentArrangement" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_WeightedAverageShareOptionsForfeitedAndExpiredInShareBasedPaymentArrangement" xml:lang="en-US">Weighted Average Share Options Forfeited and Expired In Share based Payment Arrangement</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_WeightedAverageShareOptionsForfeitedAndExpiredInShareBasedPaymentArrangement" xml:lang="en-US">Weighted average,Forfeited and expired</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_WeightedAverageShareOptionsForfeitedAndExpiredInShareBasedPaymentArrangement" xlink:to="lab_thtx_WeightedAverageShareOptionsForfeitedAndExpiredInShareBasedPaymentArrangement" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_WeightedAverageShareOptionsForfeitedAndExpiredInShareBasedPaymentArrangement" xml:lang="en-US">Weighted Average Share Options Forfeited and Expired In Share based Payment Arrangement .</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NumberOfShareOptionsForfeitedInSharebasedPaymentArrangement" xlink:label="loc_ifrs-full_NumberOfShareOptionsForfeitedInSharebasedPaymentArrangement" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_NumberOfShareOptionsForfeitedInSharebasedPaymentArrangement" xml:lang="en-US">Number of share options forfeited in share-based payment arrangement</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_ifrs-full_NumberOfShareOptionsForfeitedInSharebasedPaymentArrangement" xml:lang="en-US">Number of options, Forfeited &#8211; USD</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NumberOfShareOptionsForfeitedInSharebasedPaymentArrangement" xlink:to="lab_ifrs-full_NumberOfShareOptionsForfeitedInSharebasedPaymentArrangement" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_WeightedAverageExercisePriceOfShareOptionsForfeitedInSharebasedPaymentArrangement2019" xlink:label="loc_ifrs-full_WeightedAverageExercisePriceOfShareOptionsForfeitedInSharebasedPaymentArrangement2019" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsForfeitedInSharebasedPaymentArrangement2019" xml:lang="en-US">Weighted average exercise price of share options forfeited in share-based payment arrangement</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsForfeitedInSharebasedPaymentArrangement2019" xml:lang="en-US">Weighted average, Forfeited</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_WeightedAverageExercisePriceOfShareOptionsForfeitedInSharebasedPaymentArrangement2019" xlink:to="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsForfeitedInSharebasedPaymentArrangement2019" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfNumberAndWeightedAverageRemainingContractualLifeOfOutstandingShareOptionsTable" xlink:label="loc_ifrs-full_DisclosureOfNumberAndWeightedAverageRemainingContractualLifeOfOutstandingShareOptionsTable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfNumberAndWeightedAverageRemainingContractualLifeOfOutstandingShareOptionsTable" xml:lang="en-US">Disclosure of number and weighted average remaining contractual life of outstanding share options [table]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DisclosureOfNumberAndWeightedAverageRemainingContractualLifeOfOutstandingShareOptionsTable" xml:lang="en-US">Disclosure of number and weighted average remaining contractual life of outstanding share options [table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfNumberAndWeightedAverageRemainingContractualLifeOfOutstandingShareOptionsTable" xlink:to="lab_ifrs-full_DisclosureOfNumberAndWeightedAverageRemainingContractualLifeOfOutstandingShareOptionsTable" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RangesOfExercisePricesForOutstandingShareOptionsAxis" xlink:label="loc_ifrs-full_RangesOfExercisePricesForOutstandingShareOptionsAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_RangesOfExercisePricesForOutstandingShareOptionsAxis" xml:lang="en-US">Ranges of exercise prices for outstanding share options [axis]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_RangesOfExercisePricesForOutstandingShareOptionsAxis" xml:lang="en-US">Ranges of exercise prices for outstanding share options [axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RangesOfExercisePricesForOutstandingShareOptionsAxis" xlink:to="lab_ifrs-full_RangesOfExercisePricesForOutstandingShareOptionsAxis" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RangesOfExercisePricesForOutstandingShareOptionsDomain" xlink:label="loc_ifrs-full_RangesOfExercisePricesForOutstandingShareOptionsDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_RangesOfExercisePricesForOutstandingShareOptionsDomain" xml:lang="en-US">Ranges of exercise prices for outstanding share options [domain]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_RangesOfExercisePricesForOutstandingShareOptionsDomain" xml:lang="en-US">Ranges of exercise prices for outstanding share options [member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RangesOfExercisePricesForOutstandingShareOptionsDomain" xlink:to="lab_ifrs-full_RangesOfExercisePricesForOutstandingShareOptionsDomain" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_ExercisePriceOneMember" xlink:label="loc_thtx_ExercisePriceOneMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_ExercisePriceOneMember" xml:lang="en-US">Exercise Price One [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_ExercisePriceOneMember" xml:lang="en-US">Exercise Price 1</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_ExercisePriceOneMember" xlink:to="lab_thtx_ExercisePriceOneMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_ExercisePriceOneMember" xml:lang="en-US">Exercise Price One Member.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_ExercisePriceTwoMember" xlink:label="loc_thtx_ExercisePriceTwoMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_ExercisePriceTwoMember" xml:lang="en-US">Exercise Price Two [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_ExercisePriceTwoMember" xml:lang="en-US">Exercise Price 2</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_ExercisePriceTwoMember" xlink:to="lab_thtx_ExercisePriceTwoMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_ExercisePriceTwoMember" xml:lang="en-US">Exercise Price Two Member.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_ExercisePriceThreeMember" xlink:label="loc_thtx_ExercisePriceThreeMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_ExercisePriceThreeMember" xml:lang="en-US">Exercise Price Three [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_ExercisePriceThreeMember" xml:lang="en-US">Exercise Price 3</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_ExercisePriceThreeMember" xlink:to="lab_thtx_ExercisePriceThreeMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_ExercisePriceThreeMember" xml:lang="en-US">Exercise Price Three Member.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_ExercisePriceFourMember" xlink:label="loc_thtx_ExercisePriceFourMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_ExercisePriceFourMember" xml:lang="en-US">Exercise Price Four [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_ExercisePriceFourMember" xml:lang="en-US">Exercise Price 4</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_ExercisePriceFourMember" xlink:to="lab_thtx_ExercisePriceFourMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_ExercisePriceFourMember" xml:lang="en-US">Exercise Price Four Member.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_ExercisePriceFiveMember" xlink:label="loc_thtx_ExercisePriceFiveMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_ExercisePriceFiveMember" xml:lang="en-US">Exercise Price Five [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_ExercisePriceFiveMember" xml:lang="en-US">Exercise Price 5</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_ExercisePriceFiveMember" xlink:to="lab_thtx_ExercisePriceFiveMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_ExercisePriceFiveMember" xml:lang="en-US">Exercise Price Five Member.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_ExercisePriceSixMember" xlink:label="loc_thtx_ExercisePriceSixMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_ExercisePriceSixMember" xml:lang="en-US">Exercise Price Six [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_ExercisePriceSixMember" xml:lang="en-US">Exercise Price 6</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_ExercisePriceSixMember" xlink:to="lab_thtx_ExercisePriceSixMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_ExercisePriceSixMember" xml:lang="en-US">Exercise Price Six Member.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfNumberAndWeightedAverageRemainingContractualLifeOfOutstandingShareOptionsLineItems" xlink:label="loc_ifrs-full_DisclosureOfNumberAndWeightedAverageRemainingContractualLifeOfOutstandingShareOptionsLineItems" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfNumberAndWeightedAverageRemainingContractualLifeOfOutstandingShareOptionsLineItems" xml:lang="en-US">Disclosure of number and weighted average remaining contractual life of outstanding share options [line items]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DisclosureOfNumberAndWeightedAverageRemainingContractualLifeOfOutstandingShareOptionsLineItems" xml:lang="en-US">Disclosure of number and weighted average remaining contractual life of outstanding share options [line items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfNumberAndWeightedAverageRemainingContractualLifeOfOutstandingShareOptionsLineItems" xlink:to="lab_ifrs-full_DisclosureOfNumberAndWeightedAverageRemainingContractualLifeOfOutstandingShareOptionsLineItems" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_WeightedAverageRemainingContractualLifeOfOutstandingShareOptions2019" xlink:label="loc_ifrs-full_WeightedAverageRemainingContractualLifeOfOutstandingShareOptions2019" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_WeightedAverageRemainingContractualLifeOfOutstandingShareOptions2019" xml:lang="en-US">Weighted average remaining contractual life of outstanding share options</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_WeightedAverageRemainingContractualLifeOfOutstandingShareOptions2019" xml:lang="en-US">Weighted average remaining life</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_WeightedAverageRemainingContractualLifeOfOutstandingShareOptions2019" xlink:to="lab_ifrs-full_WeightedAverageRemainingContractualLifeOfOutstandingShareOptions2019" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/currency/2024/currency-2024.xsd#currency_USD" xlink:label="loc_currency_USD" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_currency_USD" xml:lang="en-US">United States of America, Dollars</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_currency_USD" xml:lang="en-US">US$</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_currency_USD" xlink:to="lab_currency_USD" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFinancialInstrumentsTable" xlink:label="loc_ifrs-full_DisclosureOfFinancialInstrumentsTable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfFinancialInstrumentsTable" xml:lang="en-US">Disclosure of detailed information about financial instruments [table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsTable" xlink:to="lab_ifrs-full_DisclosureOfFinancialInstrumentsTable" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_WeightedAverageFairValueOfStockOptionsGrantedTable" xlink:label="loc_thtx_WeightedAverageFairValueOfStockOptionsGrantedTable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_WeightedAverageFairValueOfStockOptionsGrantedTable" xml:lang="en-US">Weighted Average Fair Value Of Stock Options Granted [Table]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_thtx_WeightedAverageFairValueOfStockOptionsGrantedTable" xml:lang="en-US">Weighted Average Fair Value Of Stock Options Granted</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_WeightedAverageFairValueOfStockOptionsGrantedTable" xlink:to="lab_thtx_WeightedAverageFairValueOfStockOptionsGrantedTable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_WeightedAverageFairValueOfStockOptionsGrantedTable" xml:lang="en-US">weighted average fair value of stock options granted.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_WeightedAverageFairValueAtMeasurementDateShareOptionsGranted" xlink:label="loc_ifrs-full_WeightedAverageFairValueAtMeasurementDateShareOptionsGranted" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_WeightedAverageFairValueAtMeasurementDateShareOptionsGranted" xml:lang="en-US">Weighted average fair value at measurement date, share options granted</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_WeightedAverageFairValueAtMeasurementDateShareOptionsGranted" xml:lang="en-US">Weighted average grant date fair value</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_WeightedAverageFairValueAtMeasurementDateShareOptionsGranted" xlink:to="lab_ifrs-full_WeightedAverageFairValueAtMeasurementDateShareOptionsGranted" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EarningsPerShareTable" xlink:label="loc_ifrs-full_EarningsPerShareTable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_EarningsPerShareTable" xml:lang="en-US">Earnings per share [table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_EarningsPerShareTable" xlink:to="lab_ifrs-full_EarningsPerShareTable" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EarningsPerShareLineItems" xlink:label="loc_ifrs-full_EarningsPerShareLineItems" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_EarningsPerShareLineItems" xml:lang="en-US">Earnings per share [line items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_EarningsPerShareLineItems" xlink:to="lab_ifrs-full_EarningsPerShareLineItems" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustedWeightedAverageShares" xlink:label="loc_ifrs-full_AdjustedWeightedAverageShares" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_AdjustedWeightedAverageShares" xml:lang="en-US">Adjusted weighted average number of ordinary shares outstanding</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_AdjustedWeightedAverageShares" xml:lang="en-US">Weighted average number of common shares, basic&#160;and&#160;diluted</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustedWeightedAverageShares" xlink:to="lab_ifrs-full_AdjustedWeightedAverageShares" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_WeightedAverageShares" xlink:label="loc_ifrs-full_WeightedAverageShares" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_WeightedAverageShares" xml:lang="en-US">Weighted average number of ordinary shares outstanding</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_WeightedAverageShares" xml:lang="en-US">Issued common shares as at December 1</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_WeightedAverageShares" xlink:to="lab_ifrs-full_WeightedAverageShares" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_EffectOfShareOptionsExercised" xlink:label="loc_thtx_EffectOfShareOptionsExercised" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_EffectOfShareOptionsExercised" xml:lang="en-US">Effect of Share Options Exercised</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_EffectOfShareOptionsExercised" xml:lang="en-US">Effect of share options exercised</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_EffectOfShareOptionsExercised" xlink:to="lab_thtx_EffectOfShareOptionsExercised" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_EffectOfShareOptionsExercised" xml:lang="en-US">Effect of share options exercised.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_EffectOfIssueCommonShares" xlink:label="loc_thtx_EffectOfIssueCommonShares" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_EffectOfIssueCommonShares" xml:lang="en-US">Effect of Issue Common Shares</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_EffectOfIssueCommonShares" xml:lang="en-US">Effect of issue common shares</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_EffectOfIssueCommonShares" xlink:to="lab_thtx_EffectOfIssueCommonShares" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_EffectOfIssueCommonShares" xml:lang="en-US">Effect of issue common shares.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_EffectOfSubscriptionReceiptsIssue" xlink:label="loc_thtx_EffectOfSubscriptionReceiptsIssue" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_EffectOfSubscriptionReceiptsIssue" xml:lang="en-US">Effect of Subscription Receipts Issue</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_EffectOfSubscriptionReceiptsIssue" xml:lang="en-US">Effect of subscription receipts issue</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_EffectOfSubscriptionReceiptsIssue" xlink:to="lab_thtx_EffectOfSubscriptionReceiptsIssue" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_EffectOfSubscriptionReceiptsIssue" xml:lang="en-US">Effect of subscription receipts issue.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DilutiveEffectOfConvertibleInstrumentsOnNumberOfOrdinaryShares" xlink:label="loc_ifrs-full_DilutiveEffectOfConvertibleInstrumentsOnNumberOfOrdinaryShares" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DilutiveEffectOfConvertibleInstrumentsOnNumberOfOrdinaryShares" xml:lang="en-US">Dilutive effect of convertible instruments on number of ordinary shares</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DilutiveEffectOfConvertibleInstrumentsOnNumberOfOrdinaryShares" xml:lang="en-US">Impact on conversion of convertible unsecured senior notes</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DilutiveEffectOfConvertibleInstrumentsOnNumberOfOrdinaryShares" xlink:to="lab_ifrs-full_DilutiveEffectOfConvertibleInstrumentsOnNumberOfOrdinaryShares" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfOrdinarySharesAxis" xlink:label="loc_ifrs-full_ClassesOfOrdinarySharesAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ClassesOfOrdinarySharesAxis" xml:lang="en-US">Classes of ordinary shares [axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfOrdinarySharesAxis" xlink:to="lab_ifrs-full_ClassesOfOrdinarySharesAxis" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfOrdinarySharesDomain" xlink:label="loc_ifrs-full_ClassesOfOrdinarySharesDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ClassesOfOrdinarySharesDomain" xml:lang="en-US">Classes of ordinary shares [domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfOrdinarySharesDomain" xlink:to="lab_ifrs-full_ClassesOfOrdinarySharesDomain" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_ShareOptionMember" xlink:label="loc_thtx_ShareOptionMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_ShareOptionMember" xml:lang="en-US">Share Option [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_ShareOptionMember" xml:lang="en-US">Share options [member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_ShareOptionMember" xlink:to="lab_thtx_ShareOptionMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_ShareOptionMember" xml:lang="en-US">Share Option [Member]</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_PublicIssueOfSharesMember" xlink:label="loc_thtx_PublicIssueOfSharesMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_PublicIssueOfSharesMember" xml:lang="en-US">Public Issue Of Shares [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_PublicIssueOfSharesMember" xml:lang="en-US">public issue common shares [member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_PublicIssueOfSharesMember" xlink:to="lab_thtx_PublicIssueOfSharesMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_PublicIssueOfSharesMember" xml:lang="en-US">Public Issue Of Shares [Member].</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_SubscriptionReceiptsIssueMember" xlink:label="loc_thtx_SubscriptionReceiptsIssueMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_SubscriptionReceiptsIssueMember" xml:lang="en-US">Subscription Receipts Issue [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_SubscriptionReceiptsIssueMember" xml:lang="en-US">Subscription Receipts Issue [Member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_SubscriptionReceiptsIssueMember" xlink:to="lab_thtx_SubscriptionReceiptsIssueMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_SubscriptionReceiptsIssueMember" xml:lang="en-US">Subscription receipts issue.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ReserveOfGainsAndLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeMember" xlink:label="loc_ifrs-full_ReserveOfGainsAndLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ReserveOfGainsAndLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeMember" xml:lang="en-US">Reserve of gains and losses on financial assets measured at fair value through other comprehensive income [member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_ReserveOfGainsAndLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeMember" xml:lang="en-US">Unrealized losses on FVOCI financial assets, net of tax</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ReserveOfGainsAndLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeMember" xlink:to="lab_ifrs-full_ReserveOfGainsAndLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeMember" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ReserveOfExchangeDifferencesOnTranslationMember" xlink:label="loc_ifrs-full_ReserveOfExchangeDifferencesOnTranslationMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ReserveOfExchangeDifferencesOnTranslationMember" xml:lang="en-US">Reserve of exchange differences on translation [member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_ReserveOfExchangeDifferencesOnTranslationMember" xml:lang="en-US">Cumulative exchange difference on translation of foreign operations</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ReserveOfExchangeDifferencesOnTranslationMember" xlink:to="lab_ifrs-full_ReserveOfExchangeDifferencesOnTranslationMember" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentTaxExpenseIncome" xlink:label="loc_ifrs-full_CurrentTaxExpenseIncome" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_CurrentTaxExpenseIncome" xml:lang="en-US">Current tax expense (income)</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_CurrentTaxExpenseIncome" xml:lang="en-US">Current tax expense</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentTaxExpenseIncome" xlink:to="lab_ifrs-full_CurrentTaxExpenseIncome" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DeferredTaxExpenseIncomeAbstract" xlink:label="loc_ifrs-full_DeferredTaxExpenseIncomeAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DeferredTaxExpenseIncomeAbstract" xml:lang="en-US">Deferred tax expense (income) [abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_DeferredTaxExpenseIncomeAbstract" xml:lang="en-US">Deferred tax expense (recovery)</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DeferredTaxExpenseIncomeAbstract" xlink:to="lab_ifrs-full_DeferredTaxExpenseIncomeAbstract" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DeferredTaxExpenseIncomeRelatingToOriginationAndReversalOfTemporaryDifferences" xlink:label="loc_ifrs-full_DeferredTaxExpenseIncomeRelatingToOriginationAndReversalOfTemporaryDifferences" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DeferredTaxExpenseIncomeRelatingToOriginationAndReversalOfTemporaryDifferences" xml:lang="en-US">Deferred tax expense (income) relating to origination and reversal of temporary differences</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_DeferredTaxExpenseIncomeRelatingToOriginationAndReversalOfTemporaryDifferences" xml:lang="en-US">Origination and reversal of temporary differences</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DeferredTaxExpenseIncomeRelatingToOriginationAndReversalOfTemporaryDifferences" xlink:to="lab_ifrs-full_DeferredTaxExpenseIncomeRelatingToOriginationAndReversalOfTemporaryDifferences" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DeferredTaxExpenseIncomeRecognisedInProfitOrLoss" xlink:label="loc_ifrs-full_DeferredTaxExpenseIncomeRecognisedInProfitOrLoss" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DeferredTaxExpenseIncomeRecognisedInProfitOrLoss" xml:lang="en-US">Deferred tax expense (income) recognised in profit or loss</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_ifrs-full_DeferredTaxExpenseIncomeRecognisedInProfitOrLoss" xml:lang="en-US">Total deferred tax expense (recovery)</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DeferredTaxExpenseIncomeRecognisedInProfitOrLoss" xlink:to="lab_ifrs-full_DeferredTaxExpenseIncomeRecognisedInProfitOrLoss" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_IncreaseDecreaseInUnrecognizedDeductableTemporaryDifferences" xlink:label="loc_thtx_IncreaseDecreaseInUnrecognizedDeductableTemporaryDifferences" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_IncreaseDecreaseInUnrecognizedDeductableTemporaryDifferences" xml:lang="en-US">Increase Decrease In Unrecognized Deductable Temporary Differences</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_thtx_IncreaseDecreaseInUnrecognizedDeductableTemporaryDifferences" xml:lang="en-US">Change in unrecognized deductible temporary differences</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_IncreaseDecreaseInUnrecognizedDeductableTemporaryDifferences" xlink:to="lab_thtx_IncreaseDecreaseInUnrecognizedDeductableTemporaryDifferences" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_IncreaseDecreaseInUnrecognizedDeductableTemporaryDifferences" xml:lang="en-US">Increase decrease in unrecognized deductable temporary differences.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TaxExpenseIncomeAtApplicableTaxRate" xlink:label="loc_ifrs-full_TaxExpenseIncomeAtApplicableTaxRate" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_TaxExpenseIncomeAtApplicableTaxRate" xml:lang="en-US">Tax expense (income) at applicable tax rate</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_TaxExpenseIncomeAtApplicableTaxRate" xml:lang="en-US">Income taxes at domestic tax statutory rate</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TaxExpenseIncomeAtApplicableTaxRate" xlink:to="lab_ifrs-full_TaxExpenseIncomeAtApplicableTaxRate" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss" xlink:label="loc_ifrs-full_TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss" xml:lang="en-US">Tax effect of expense not deductible in determining taxable profit (tax loss)</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss" xml:lang="en-US">Non-deductible&#160;expenses and other</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss" xlink:to="lab_ifrs-full_TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_IncreaseDecreaseInUnrecognizedDeductibleTemporaryDifferences" xlink:label="loc_thtx_IncreaseDecreaseInUnrecognizedDeductibleTemporaryDifferences" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_IncreaseDecreaseInUnrecognizedDeductibleTemporaryDifferences" xml:lang="en-US">Increase Decrease In Unrecognized Deductible Temporary Differences</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_thtx_IncreaseDecreaseInUnrecognizedDeductibleTemporaryDifferences" xml:lang="en-US">Change in unrecognized deductible temporary differences</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_IncreaseDecreaseInUnrecognizedDeductibleTemporaryDifferences" xlink:to="lab_thtx_IncreaseDecreaseInUnrecognizedDeductibleTemporaryDifferences" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_IncreaseDecreaseInUnrecognizedDeductibleTemporaryDifferences" xml:lang="en-US">Increase decrease in unrecognized deductible temporary differences.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TaxEffectFromChangeInTaxRate" xlink:label="loc_ifrs-full_TaxEffectFromChangeInTaxRate" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_TaxEffectFromChangeInTaxRate" xml:lang="en-US">Tax effect from change in tax rate</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_TaxEffectFromChangeInTaxRate" xml:lang="en-US">Impact of differences in statutory tax rates</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TaxEffectFromChangeInTaxRate" xlink:to="lab_ifrs-full_TaxEffectFromChangeInTaxRate" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DisclosureOfDetailedInformationAboutIncomeTaxTable" xlink:label="loc_thtx_DisclosureOfDetailedInformationAboutIncomeTaxTable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DisclosureOfDetailedInformationAboutIncomeTaxTable" xml:lang="en-US">Disclosure of Detailed Information About Income Tax [Table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DisclosureOfDetailedInformationAboutIncomeTaxTable" xlink:to="lab_thtx_DisclosureOfDetailedInformationAboutIncomeTaxTable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DisclosureOfDetailedInformationAboutIncomeTaxTable" xml:lang="en-US">Disclosure of Detailed Information About Income Tax [Table]</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DisclosureOfDetailedInformationAboutIncomeTaxLineItems" xlink:label="loc_thtx_DisclosureOfDetailedInformationAboutIncomeTaxLineItems" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DisclosureOfDetailedInformationAboutIncomeTaxLineItems" xml:lang="en-US">Disclosure of Detailed Information About Income Tax [Line Items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DisclosureOfDetailedInformationAboutIncomeTaxLineItems" xlink:to="lab_thtx_DisclosureOfDetailedInformationAboutIncomeTaxLineItems" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DisclosureOfDetailedInformationAboutIncomeTaxLineItems" xml:lang="en-US">Disclosure of Detailed Information About Income Tax [Line Items]</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ApplicableTaxRate" xlink:label="loc_ifrs-full_ApplicableTaxRate" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ApplicableTaxRate" xml:lang="en-US">Applicable tax rate</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_ApplicableTaxRate" xml:lang="en-US">Effective applicable income tax rate</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ApplicableTaxRate" xlink:to="lab_ifrs-full_ApplicableTaxRate" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_NetOperatingLossOnTaxCreditToEquityShareIssueCost" xlink:label="loc_thtx_NetOperatingLossOnTaxCreditToEquityShareIssueCost" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_NetOperatingLossOnTaxCreditToEquityShareIssueCost" xml:lang="en-US">Net Operating Loss On Tax Credit To Equity Share Issue Cost</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_NetOperatingLossOnTaxCreditToEquityShareIssueCost" xml:lang="en-US">Net operating loss on tax credit to equity share issue cost</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_NetOperatingLossOnTaxCreditToEquityShareIssueCost" xlink:to="lab_thtx_NetOperatingLossOnTaxCreditToEquityShareIssueCost" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_NetOperatingLossOnTaxCreditToEquityShareIssueCost" xml:lang="en-US">Net operating loss on tax credit to equity share issue cost.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_RefundableTaxCreditAgainstOnResearchAndDevelopmentExpenses" xlink:label="loc_thtx_RefundableTaxCreditAgainstOnResearchAndDevelopmentExpenses" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_RefundableTaxCreditAgainstOnResearchAndDevelopmentExpenses" xml:lang="en-US">Refundable Tax Credit Against On Research And Development Expenses</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_RefundableTaxCreditAgainstOnResearchAndDevelopmentExpenses" xml:lang="en-US">Refundable tax credit against on research and development expenses</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_RefundableTaxCreditAgainstOnResearchAndDevelopmentExpenses" xlink:to="lab_thtx_RefundableTaxCreditAgainstOnResearchAndDevelopmentExpenses" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_RefundableTaxCreditAgainstOnResearchAndDevelopmentExpenses" xml:lang="en-US">Refundable tax credit against on research and development expenses.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_NonRefundableTaxCreditAgainstOnResearchAndDevelopmentExpenses" xlink:label="loc_thtx_NonRefundableTaxCreditAgainstOnResearchAndDevelopmentExpenses" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_NonRefundableTaxCreditAgainstOnResearchAndDevelopmentExpenses" xml:lang="en-US">Non Refundable Tax Credit Against On Research And Development Expenses</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_NonRefundableTaxCreditAgainstOnResearchAndDevelopmentExpenses" xml:lang="en-US">Non refundable tax credit against on research and development expenses</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_NonRefundableTaxCreditAgainstOnResearchAndDevelopmentExpenses" xlink:to="lab_thtx_NonRefundableTaxCreditAgainstOnResearchAndDevelopmentExpenses" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_NonRefundableTaxCreditAgainstOnResearchAndDevelopmentExpenses" xml:lang="en-US">Non refundable tax credit against on research and development expenses.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_NonRefundableTaxCredit" xlink:label="loc_thtx_NonRefundableTaxCredit" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_NonRefundableTaxCredit" xml:lang="en-US">Non Refundable Tax Credit</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_NonRefundableTaxCredit" xml:lang="en-US">Non refundable tax credit</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_NonRefundableTaxCredit" xlink:to="lab_thtx_NonRefundableTaxCredit" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_NonRefundableTaxCredit" xml:lang="en-US">Non refundable tax credit.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_UnusedTaxLossesForWhichNoDeferredTaxAssetRecognised" xlink:label="loc_ifrs-full_UnusedTaxLossesForWhichNoDeferredTaxAssetRecognised" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_UnusedTaxLossesForWhichNoDeferredTaxAssetRecognised" xml:lang="en-US">Unused tax losses for which no deferred tax asset recognised</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_UnusedTaxLossesForWhichNoDeferredTaxAssetRecognised" xml:lang="en-US">Unused tax losses for which no deferred tax asset recognised</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_UnusedTaxLossesForWhichNoDeferredTaxAssetRecognised" xml:lang="en-US">Losses carried forward</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_UnusedTaxLossesForWhichNoDeferredTaxAssetRecognised" xlink:to="lab_ifrs-full_UnusedTaxLossesForWhichNoDeferredTaxAssetRecognised" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_TypeOfReversalOfDeferredTaxLiabilityAxis" xlink:label="loc_thtx_TypeOfReversalOfDeferredTaxLiabilityAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_TypeOfReversalOfDeferredTaxLiabilityAxis" xml:lang="en-US">Type Of Reversal Of Deferred Tax Liability [Axis]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_TypeOfReversalOfDeferredTaxLiabilityAxis" xml:lang="en-US">Type Of Reversal Of Deferred Tax Liability [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_TypeOfReversalOfDeferredTaxLiabilityAxis" xlink:to="lab_thtx_TypeOfReversalOfDeferredTaxLiabilityAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_TypeOfReversalOfDeferredTaxLiabilityAxis" xml:lang="en-US">Type Of Reversal Of Deferred Tax Liability Axis.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_TypeOfReversalOfDeferredTaxLiabilityMember" xlink:label="loc_thtx_TypeOfReversalOfDeferredTaxLiabilityMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_TypeOfReversalOfDeferredTaxLiabilityMember" xml:lang="en-US">Type Of Reversal Of Deferred Tax Liability [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_TypeOfReversalOfDeferredTaxLiabilityMember" xml:lang="en-US">Type Of Reversal Of Deferred Tax Liability [Member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_TypeOfReversalOfDeferredTaxLiabilityMember" xlink:to="lab_thtx_TypeOfReversalOfDeferredTaxLiabilityMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_TypeOfReversalOfDeferredTaxLiabilityMember" xml:lang="en-US">Type Of Reversal Of Deferred Tax Liability Member.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_OffsettingOfDeferredTaxLiabilityAxis" xlink:label="loc_thtx_OffsettingOfDeferredTaxLiabilityAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_OffsettingOfDeferredTaxLiabilityAxis" xml:lang="en-US">Offsetting of Deferred Tax Liability [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_OffsettingOfDeferredTaxLiabilityAxis" xlink:to="lab_thtx_OffsettingOfDeferredTaxLiabilityAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_OffsettingOfDeferredTaxLiabilityAxis" xml:lang="en-US">Offsetting of Deferred Tax Liability [Axis]</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_OffsettingOfDeferredTaxLiabilityMember" xlink:label="loc_thtx_OffsettingOfDeferredTaxLiabilityMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_OffsettingOfDeferredTaxLiabilityMember" xml:lang="en-US">Offsetting of Deferred Tax Liability [Member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_OffsettingOfDeferredTaxLiabilityMember" xlink:to="lab_thtx_OffsettingOfDeferredTaxLiabilityMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_OffsettingOfDeferredTaxLiabilityMember" xml:lang="en-US">Offsetting of Deferred Tax Liability [Member]</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable" xlink:label="loc_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable" xml:lang="en-US">Disclosure of temporary difference, unused tax losses and unused tax credits [table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable" xlink:to="lab_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_TaxBenefitCarryForwardYearAxis" xlink:label="loc_thtx_TaxBenefitCarryForwardYearAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_TaxBenefitCarryForwardYearAxis" xml:lang="en-US">Tax Benefit Carry Forward Year [Axis]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_TaxBenefitCarryForwardYearAxis" xml:lang="en-US">Tax Benefit Carry Forward Year [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_TaxBenefitCarryForwardYearAxis" xlink:to="lab_thtx_TaxBenefitCarryForwardYearAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_TaxBenefitCarryForwardYearAxis" xml:lang="en-US">Tax Benefit Carry Forward Year Axis.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_TaxBenefitCarryForwardYearMember" xlink:label="loc_thtx_TaxBenefitCarryForwardYearMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_TaxBenefitCarryForwardYearMember" xml:lang="en-US">Tax Benefit Carry Forward Year [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_TaxBenefitCarryForwardYearMember" xml:lang="en-US">Tax Benefit Carry Forward Year [Member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_TaxBenefitCarryForwardYearMember" xlink:to="lab_thtx_TaxBenefitCarryForwardYearMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_TaxBenefitCarryForwardYearMember" xml:lang="en-US">Tax Benefit Carry Forward Year Member.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_YearTwoThousandAndTwentySevenMember" xlink:label="loc_thtx_YearTwoThousandAndTwentySevenMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_YearTwoThousandAndTwentySevenMember" xml:lang="en-US">Year Two Thousand And Twenty Seven [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_YearTwoThousandAndTwentySevenMember" xml:lang="en-US">2027</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_YearTwoThousandAndTwentySevenMember" xlink:to="lab_thtx_YearTwoThousandAndTwentySevenMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_YearTwoThousandAndTwentySevenMember" xml:lang="en-US">Year Two Thousand And Twenty Seven Member.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_YearTwoThousandAndTwentyEightMember" xlink:label="loc_thtx_YearTwoThousandAndTwentyEightMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_YearTwoThousandAndTwentyEightMember" xml:lang="en-US">Year Two Thousand And Twenty Eight [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_YearTwoThousandAndTwentyEightMember" xml:lang="en-US">2028</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_YearTwoThousandAndTwentyEightMember" xlink:to="lab_thtx_YearTwoThousandAndTwentyEightMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_YearTwoThousandAndTwentyEightMember" xml:lang="en-US">Year Two Thousand And Twenty Eight [Member].</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_YearTwoThousandAndTwentyNineMember" xlink:label="loc_thtx_YearTwoThousandAndTwentyNineMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_YearTwoThousandAndTwentyNineMember" xml:lang="en-US">Year Two Thousand And Twenty Nine [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_YearTwoThousandAndTwentyNineMember" xml:lang="en-US">2029</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_YearTwoThousandAndTwentyNineMember" xlink:to="lab_thtx_YearTwoThousandAndTwentyNineMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_YearTwoThousandAndTwentyNineMember" xml:lang="en-US">Year Two Thousand And Twenty Nine Member.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_YearTwoThousandAndThirtyMember" xlink:label="loc_thtx_YearTwoThousandAndThirtyMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_YearTwoThousandAndThirtyMember" xml:lang="en-US">Year Two Thousand And Thirty [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_YearTwoThousandAndThirtyMember" xml:lang="en-US">2030</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_YearTwoThousandAndThirtyMember" xlink:to="lab_thtx_YearTwoThousandAndThirtyMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_YearTwoThousandAndThirtyMember" xml:lang="en-US">Year Two Thousand And Thirty Member.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_YearTwoThousandAndThirtyOneMember" xlink:label="loc_thtx_YearTwoThousandAndThirtyOneMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_YearTwoThousandAndThirtyOneMember" xml:lang="en-US">Year Two Thousand And Thirty One [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_YearTwoThousandAndThirtyOneMember" xml:lang="en-US">2031</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_YearTwoThousandAndThirtyOneMember" xlink:to="lab_thtx_YearTwoThousandAndThirtyOneMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_YearTwoThousandAndThirtyOneMember" xml:lang="en-US">Year Two Thousand And Thirty One Member.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_YearTwoThousandAndThirtyTwoMember" xlink:label="loc_thtx_YearTwoThousandAndThirtyTwoMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_YearTwoThousandAndThirtyTwoMember" xml:lang="en-US">Year Two Thousand And Thirty Two [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_YearTwoThousandAndThirtyTwoMember" xml:lang="en-US">2032</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_YearTwoThousandAndThirtyTwoMember" xlink:to="lab_thtx_YearTwoThousandAndThirtyTwoMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_YearTwoThousandAndThirtyTwoMember" xml:lang="en-US">Year Two Thousand And Thirty Two Member.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_YearTwoThousandAndThirtyThreeMember" xlink:label="loc_thtx_YearTwoThousandAndThirtyThreeMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_YearTwoThousandAndThirtyThreeMember" xml:lang="en-US">Year Two Thousand And Thirty Three [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_YearTwoThousandAndThirtyThreeMember" xml:lang="en-US">2033</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_YearTwoThousandAndThirtyThreeMember" xlink:to="lab_thtx_YearTwoThousandAndThirtyThreeMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_YearTwoThousandAndThirtyThreeMember" xml:lang="en-US">Year Two Thousand And Thirty Three Member.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_YearTwoThousandAndThirtyFourMember" xlink:label="loc_thtx_YearTwoThousandAndThirtyFourMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_YearTwoThousandAndThirtyFourMember" xml:lang="en-US">Year Two Thousand And Thirty Four [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_YearTwoThousandAndThirtyFourMember" xml:lang="en-US">2034</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_YearTwoThousandAndThirtyFourMember" xlink:to="lab_thtx_YearTwoThousandAndThirtyFourMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_YearTwoThousandAndThirtyFourMember" xml:lang="en-US">Year Two Thousand And Thirty Four Member.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_YearTwoThousandAndThirtySevenMember" xlink:label="loc_thtx_YearTwoThousandAndThirtySevenMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_YearTwoThousandAndThirtySevenMember" xml:lang="en-US">Year Two Thousand And Thirty Seven [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_YearTwoThousandAndThirtySevenMember" xml:lang="en-US">2037</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_YearTwoThousandAndThirtySevenMember" xlink:to="lab_thtx_YearTwoThousandAndThirtySevenMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_YearTwoThousandAndThirtySevenMember" xml:lang="en-US">Year Two Thousand And Thirty Seven Member.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_YearTwoThousandAndThirtyEightMember" xlink:label="loc_thtx_YearTwoThousandAndThirtyEightMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_YearTwoThousandAndThirtyEightMember" xml:lang="en-US">Year Two Thousand And Thirty Eight [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_YearTwoThousandAndThirtyEightMember" xml:lang="en-US">2038</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_YearTwoThousandAndThirtyEightMember" xlink:to="lab_thtx_YearTwoThousandAndThirtyEightMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_YearTwoThousandAndThirtyEightMember" xml:lang="en-US">Year Two Thousand And Thirty Eight Member.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_YearTwoThousandAndThirtyNineMember" xlink:label="loc_thtx_YearTwoThousandAndThirtyNineMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_YearTwoThousandAndThirtyNineMember" xml:lang="en-US">Year Two Thousand And Thirty Nine [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_YearTwoThousandAndThirtyNineMember" xml:lang="en-US">2039</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_YearTwoThousandAndThirtyNineMember" xlink:to="lab_thtx_YearTwoThousandAndThirtyNineMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_YearTwoThousandAndThirtyNineMember" xml:lang="en-US">Year two thousand and thirty nine</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_YearTwoThousandAndFortyMember" xlink:label="loc_thtx_YearTwoThousandAndFortyMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_YearTwoThousandAndFortyMember" xml:lang="en-US">Year Two Thousand And Forty [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_YearTwoThousandAndFortyMember" xml:lang="en-US">2040</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_YearTwoThousandAndFortyMember" xlink:to="lab_thtx_YearTwoThousandAndFortyMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_YearTwoThousandAndFortyMember" xml:lang="en-US">Year two thousand and forty.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_YearTwoThousandAndFortyOneMember" xlink:label="loc_thtx_YearTwoThousandAndFortyOneMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_YearTwoThousandAndFortyOneMember" xml:lang="en-US">Year Two Thousand And Forty One [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_YearTwoThousandAndFortyOneMember" xml:lang="en-US">2041</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_YearTwoThousandAndFortyOneMember" xlink:to="lab_thtx_YearTwoThousandAndFortyOneMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_YearTwoThousandAndFortyOneMember" xml:lang="en-US">Year Two Thousand And Forty [Member].</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_YearTwoThousandAndFortyThreeMember" xlink:label="loc_thtx_YearTwoThousandAndFortyThreeMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_YearTwoThousandAndFortyThreeMember" xml:lang="en-US">Year Two Thousand And Forty Three [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_YearTwoThousandAndFortyThreeMember" xml:lang="en-US">2043</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_YearTwoThousandAndFortyThreeMember" xlink:to="lab_thtx_YearTwoThousandAndFortyThreeMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_YearTwoThousandAndFortyThreeMember" xml:lang="en-US">Year two thousand and forty three.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_YearTwoThousandAndFortyTwoMember" xlink:label="loc_thtx_YearTwoThousandAndFortyTwoMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_YearTwoThousandAndFortyTwoMember" xml:lang="en-US">Year Two Thousand And Forty Two [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_YearTwoThousandAndFortyTwoMember" xml:lang="en-US">2042</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_YearTwoThousandAndFortyTwoMember" xlink:to="lab_thtx_YearTwoThousandAndFortyTwoMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_YearTwoThousandAndFortyTwoMember" xml:lang="en-US">2042 [Member].</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_IncomeTaxJurisdictionAxis" xlink:label="loc_thtx_IncomeTaxJurisdictionAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_IncomeTaxJurisdictionAxis" xml:lang="en-US">Income Tax Jurisdiction [Axis]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_IncomeTaxJurisdictionAxis" xml:lang="en-US">Income Tax Jurisdiction [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_IncomeTaxJurisdictionAxis" xlink:to="lab_thtx_IncomeTaxJurisdictionAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_IncomeTaxJurisdictionAxis" xml:lang="en-US">Income Tax Jurisdiction Axis.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_IncomeTaxJurisdictionMember" xlink:label="loc_thtx_IncomeTaxJurisdictionMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_IncomeTaxJurisdictionMember" xml:lang="en-US">Income Tax Jurisdiction [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_IncomeTaxJurisdictionMember" xml:lang="en-US">Income Tax Jurisdiction [Member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_IncomeTaxJurisdictionMember" xlink:to="lab_thtx_IncomeTaxJurisdictionMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_IncomeTaxJurisdictionMember" xml:lang="en-US">Income Tax Jurisdiction Member.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_FederalMember" xlink:label="loc_thtx_FederalMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_FederalMember" xml:lang="en-US">Federal [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_FederalMember" xml:lang="en-US">Federal</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_FederalMember" xlink:to="lab_thtx_FederalMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_FederalMember" xml:lang="en-US">Federal Member.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_ProvincialMember" xlink:label="loc_thtx_ProvincialMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_ProvincialMember" xml:lang="en-US">Provincial [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_ProvincialMember" xml:lang="en-US">Provincial</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_ProvincialMember" xlink:to="lab_thtx_ProvincialMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_ProvincialMember" xml:lang="en-US">Provincial Member.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems" xlink:label="loc_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems" xml:lang="en-US">Disclosure of temporary difference, unused tax losses and unused tax credits [line items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems" xlink:to="lab_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_UnutilisedResearchAndDevelopmentExpensesWithNoTimeLimitation" xlink:label="loc_thtx_UnutilisedResearchAndDevelopmentExpensesWithNoTimeLimitation" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_UnutilisedResearchAndDevelopmentExpensesWithNoTimeLimitation" xml:lang="en-US">Unutilised Research And Development Expenses With No Time Limitation</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_UnutilisedResearchAndDevelopmentExpensesWithNoTimeLimitation" xml:lang="en-US">Research and development expenses, without&#160;time&#160;limitation</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_UnutilisedResearchAndDevelopmentExpensesWithNoTimeLimitation" xlink:to="lab_thtx_UnutilisedResearchAndDevelopmentExpensesWithNoTimeLimitation" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_UnutilisedResearchAndDevelopmentExpensesWithNoTimeLimitation" xml:lang="en-US">Unutilised Research And Development Expenses With No Time Limitation.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_ExcessOfTaxValueOfPropertyPlantAndEquipmentOverCarryingValue" xlink:label="loc_thtx_ExcessOfTaxValueOfPropertyPlantAndEquipmentOverCarryingValue" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_ExcessOfTaxValueOfPropertyPlantAndEquipmentOverCarryingValue" xml:lang="en-US">Excess Of Tax Value Of Property Plant And Equipment Over Carrying Value</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_ExcessOfTaxValueOfPropertyPlantAndEquipmentOverCarryingValue" xml:lang="en-US">Excess of tax value of property and equipment over carrying value</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_ExcessOfTaxValueOfPropertyPlantAndEquipmentOverCarryingValue" xlink:to="lab_thtx_ExcessOfTaxValueOfPropertyPlantAndEquipmentOverCarryingValue" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_ExcessOfTaxValueOfPropertyPlantAndEquipmentOverCarryingValue" xml:lang="en-US">Excess of tax value of property,plant and equipment over carrying value.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_ExcessOfTaxValueOfIntellectualPropertyAndFeesOverCarryingValue" xlink:label="loc_thtx_ExcessOfTaxValueOfIntellectualPropertyAndFeesOverCarryingValue" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_ExcessOfTaxValueOfIntellectualPropertyAndFeesOverCarryingValue" xml:lang="en-US">Excess Of Tax Value Of Intellectual Property And Fees Over Carrying Value</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_ExcessOfTaxValueOfIntellectualPropertyAndFeesOverCarryingValue" xml:lang="en-US">Excess of tax value of intellectual property and patent fees over carrying value</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_ExcessOfTaxValueOfIntellectualPropertyAndFeesOverCarryingValue" xlink:to="lab_thtx_ExcessOfTaxValueOfIntellectualPropertyAndFeesOverCarryingValue" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_ExcessOfTaxValueOfIntellectualPropertyAndFeesOverCarryingValue" xml:lang="en-US">Excess of tax value of intellectual, Property,and fees over carrying value.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_AvailableDeductionsAndOthers" xlink:label="loc_thtx_AvailableDeductionsAndOthers" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_AvailableDeductionsAndOthers" xml:lang="en-US">Available Deductions And Others</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_AvailableDeductionsAndOthers" xml:lang="en-US">Available deductions and other</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_AvailableDeductionsAndOthers" xlink:to="lab_thtx_AvailableDeductionsAndOthers" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_AvailableDeductionsAndOthers" xml:lang="en-US">Available deductions and others.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_AdditionsToPropertyAndEquipmentIncludedInAccountsPayableAndAccruedLiabilities" xlink:label="loc_thtx_AdditionsToPropertyAndEquipmentIncludedInAccountsPayableAndAccruedLiabilities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_AdditionsToPropertyAndEquipmentIncludedInAccountsPayableAndAccruedLiabilities" xml:lang="en-US">Additions To Property And Equipment Included In Accounts Payable And Accrued Liabilities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_AdditionsToPropertyAndEquipmentIncludedInAccountsPayableAndAccruedLiabilities" xml:lang="en-US">Additions to property and equipment included in accounts payable and accrued liabilities</label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_AdditionsToPropertyAndEquipmentIncludedInAccountsPayableAndAccruedLiabilities" xml:lang="en-US">Additions to property and equipment included in accounts payable and accrued liabilities.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_AdditionsToIntangiblesIncludedInAccountsPayableAndAccruedLiabilities" xlink:label="loc_thtx_AdditionsToIntangiblesIncludedInAccountsPayableAndAccruedLiabilities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_AdditionsToIntangiblesIncludedInAccountsPayableAndAccruedLiabilities" xml:lang="en-US">Additions To Intangibles Included In Accounts Payable And Accrued Liabilities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_AdditionsToIntangiblesIncludedInAccountsPayableAndAccruedLiabilities" xml:lang="en-US">Additions to intangible assets included in accounts payable and accrued liabilities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_AdditionsToIntangiblesIncludedInAccountsPayableAndAccruedLiabilities" xlink:to="lab_thtx_AdditionsToIntangiblesIncludedInAccountsPayableAndAccruedLiabilities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_AdditionsToIntangiblesIncludedInAccountsPayableAndAccruedLiabilities" xml:lang="en-US">Additions To intangibles included in accounts payable and accrued liabilities.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DeferredFinancingCostsincludedInAccountsPayableAndAccruedLiabilities" xlink:label="loc_thtx_DeferredFinancingCostsincludedInAccountsPayableAndAccruedLiabilities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DeferredFinancingCostsincludedInAccountsPayableAndAccruedLiabilities" xml:lang="en-US">Deferred financing costsincluded in accounts payable and accrued liabilities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_DeferredFinancingCostsincludedInAccountsPayableAndAccruedLiabilities" xml:lang="en-US">Deferred financing transactions costs included in accounts payable and accrued liabilities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DeferredFinancingCostsincludedInAccountsPayableAndAccruedLiabilities" xlink:to="lab_thtx_DeferredFinancingCostsincludedInAccountsPayableAndAccruedLiabilities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DeferredFinancingCostsincludedInAccountsPayableAndAccruedLiabilities" xml:lang="en-US">Deferred financing costs&#160;included in accounts payable and accrued liabilities.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_Costsrelatedtorepaymentoflongtermdebtincludedinaccountspayableandaccruedliabilities" xlink:label="loc_thtx_Costsrelatedtorepaymentoflongtermdebtincludedinaccountspayableandaccruedliabilities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_Costsrelatedtorepaymentoflongtermdebtincludedinaccountspayableandaccruedliabilities" xml:lang="en-US">CostsRelatedToRepaymentOfLongTermDebtIncludedInAccountsPayableAndAccruedLiabilities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_Costsrelatedtorepaymentoflongtermdebtincludedinaccountspayableandaccruedliabilities" xml:lang="en-US">Costs related to repayment of long-term debt included in accounts payable and accrued liabilities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_Costsrelatedtorepaymentoflongtermdebtincludedinaccountspayableandaccruedliabilities" xlink:to="lab_thtx_Costsrelatedtorepaymentoflongtermdebtincludedinaccountspayableandaccruedliabilities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_Costsrelatedtorepaymentoflongtermdebtincludedinaccountspayableandaccruedliabilities" xml:lang="en-US">CostsRelatedToRepaymentOfLongTermDebtIncludedInAccountsPayableAndAccruedLiabilities</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_Costsrelatedtoissuanceoflongtermdebtincludedinaccountspayableandaccruedliabilities" xlink:label="loc_thtx_Costsrelatedtoissuanceoflongtermdebtincludedinaccountspayableandaccruedliabilities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_Costsrelatedtoissuanceoflongtermdebtincludedinaccountspayableandaccruedliabilities" xml:lang="en-US">CostsRelatedToIssuanceOfLongTermDebtIncludedInAccountsPayableAndAccruedLiabilities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_Costsrelatedtoissuanceoflongtermdebtincludedinaccountspayableandaccruedliabilities" xml:lang="en-US">Costs related to issuance of long-term debt included in accounts payable and accrued liabilities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_Costsrelatedtoissuanceoflongtermdebtincludedinaccountspayableandaccruedliabilities" xlink:to="lab_thtx_Costsrelatedtoissuanceoflongtermdebtincludedinaccountspayableandaccruedliabilities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_Costsrelatedtoissuanceoflongtermdebtincludedinaccountspayableandaccruedliabilities" xml:lang="en-US">CostsRelatedToIssuanceOfLongTermDebtIncludedInAccountsPayableAndAccruedLiabilities</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_AcquisitionOfDerivativeFinancialAssetsIncludedInAccountsPayableAndAccruedLiabilities" xlink:label="loc_thtx_AcquisitionOfDerivativeFinancialAssetsIncludedInAccountsPayableAndAccruedLiabilities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_AcquisitionOfDerivativeFinancialAssetsIncludedInAccountsPayableAndAccruedLiabilities" xml:lang="en-US">Acquisition of Derivative Financial Assets Included in Accounts Payable and Accrued Liabilities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_AcquisitionOfDerivativeFinancialAssetsIncludedInAccountsPayableAndAccruedLiabilities" xml:lang="en-US">Acquisition of derivative financial assets included in accounts payable and accrued liabilities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_AcquisitionOfDerivativeFinancialAssetsIncludedInAccountsPayableAndAccruedLiabilities" xlink:to="lab_thtx_AcquisitionOfDerivativeFinancialAssetsIncludedInAccountsPayableAndAccruedLiabilities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_AcquisitionOfDerivativeFinancialAssetsIncludedInAccountsPayableAndAccruedLiabilities" xml:lang="en-US">Acquisition of derivative financial assets included in accounts payable and accrued liabilities.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_ShareIssueCostIncludedInAccountsPayableAndAccruedLiabilities" xlink:label="loc_thtx_ShareIssueCostIncludedInAccountsPayableAndAccruedLiabilities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_ShareIssueCostIncludedInAccountsPayableAndAccruedLiabilities" xml:lang="en-US">Share Issue Cost Included in Accounts Payable and Accrued Liabilities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_ShareIssueCostIncludedInAccountsPayableAndAccruedLiabilities" xml:lang="en-US">Share issue cost included in accounts payable and accrued liabilities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_ShareIssueCostIncludedInAccountsPayableAndAccruedLiabilities" xlink:to="lab_thtx_ShareIssueCostIncludedInAccountsPayableAndAccruedLiabilities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_ShareIssueCostIncludedInAccountsPayableAndAccruedLiabilities" xml:lang="en-US">Share issue cost included in accounts payable and accrued liabilities</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_ReclassificationOfOtherDeferredFinancingCostsToDeficit" xlink:label="loc_thtx_ReclassificationOfOtherDeferredFinancingCostsToDeficit" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_ReclassificationOfOtherDeferredFinancingCostsToDeficit" xml:lang="en-US">Reclassification of Other Deferred Financing Costs to Deficit</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_ReclassificationOfOtherDeferredFinancingCostsToDeficit" xml:lang="en-US">Reclassification of other Deferred financing costs to long-term debt</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_ReclassificationOfOtherDeferredFinancingCostsToDeficit" xlink:to="lab_thtx_ReclassificationOfOtherDeferredFinancingCostsToDeficit" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_ReclassificationOfOtherDeferredFinancingCostsToDeficit" xml:lang="en-US">Reclassification of other deferred financing costs to deficit.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFinancialInstrumentsLineItems" xlink:label="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfFinancialInstrumentsLineItems" xml:lang="en-US">Disclosure of detailed information about financial instruments [line items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems" xlink:to="lab_ifrs-full_DisclosureOfFinancialInstrumentsLineItems" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_PositivePercentageImpactOnForeignCurrencyExposures" xlink:label="loc_thtx_PositivePercentageImpactOnForeignCurrencyExposures" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_PositivePercentageImpactOnForeignCurrencyExposures" xml:lang="en-US">Positive Percentage Impact On Foreign Currency Exposures</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_PositivePercentageImpactOnForeignCurrencyExposures" xml:lang="en-US">Positive percentage impact on foreign currency exposures</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_PositivePercentageImpactOnForeignCurrencyExposures" xlink:to="lab_thtx_PositivePercentageImpactOnForeignCurrencyExposures" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_PositivePercentageImpactOnForeignCurrencyExposures" xml:lang="en-US">Positive percentage impact on foreign currency exposures.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_NegativePercentageImpactOnForeignCurrencyExposures" xlink:label="loc_thtx_NegativePercentageImpactOnForeignCurrencyExposures" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_NegativePercentageImpactOnForeignCurrencyExposures" xml:lang="en-US">Negative Percentage Impact On Foreign Currency Exposures</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_NegativePercentageImpactOnForeignCurrencyExposures" xml:lang="en-US">Negative percentage impact on foreign currency exposures</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_NegativePercentageImpactOnForeignCurrencyExposures" xlink:to="lab_thtx_NegativePercentageImpactOnForeignCurrencyExposures" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_NegativePercentageImpactOnForeignCurrencyExposures" xml:lang="en-US">Negative percentage impact on foreign currency exposures</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PercentageOfReasonablyPossibleIncreaseInUnobservableInputAssets" xlink:label="loc_ifrs-full_PercentageOfReasonablyPossibleIncreaseInUnobservableInputAssets" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_PercentageOfReasonablyPossibleIncreaseInUnobservableInputAssets" xml:lang="en-US">Percentage of reasonably possible increase in unobservable input, assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_PercentageOfReasonablyPossibleIncreaseInUnobservableInputAssets" xml:lang="en-US">Positive impact of market interest rates</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PercentageOfReasonablyPossibleIncreaseInUnobservableInputAssets" xlink:to="lab_ifrs-full_PercentageOfReasonablyPossibleIncreaseInUnobservableInputAssets" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PercentageOfReasonablyPossibleDecreaseInUnobservableInputAssets" xlink:label="loc_ifrs-full_PercentageOfReasonablyPossibleDecreaseInUnobservableInputAssets" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_PercentageOfReasonablyPossibleDecreaseInUnobservableInputAssets" xml:lang="en-US">Percentage of reasonably possible decrease in unobservable input, assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_PercentageOfReasonablyPossibleDecreaseInUnobservableInputAssets" xml:lang="en-US">Negative impact of market interest rates</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PercentageOfReasonablyPossibleDecreaseInUnobservableInputAssets" xlink:to="lab_ifrs-full_PercentageOfReasonablyPossibleDecreaseInUnobservableInputAssets" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_VariableInterestbearingCashAndMoneyMarketFunds" xlink:label="loc_thtx_VariableInterestbearingCashAndMoneyMarketFunds" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_VariableInterestbearingCashAndMoneyMarketFunds" xml:lang="en-US">Variable InterestBearing Cash And Money Market Funds</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_VariableInterestbearingCashAndMoneyMarketFunds" xml:lang="en-US">Cash and money market funds</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_VariableInterestbearingCashAndMoneyMarketFunds" xlink:to="lab_thtx_VariableInterestbearingCashAndMoneyMarketFunds" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_VariableInterestbearingCashAndMoneyMarketFunds" xml:lang="en-US">Variable Interest-Bearing Cash And Money Market Funds</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_IncreaseDecreaseInFairValueMeasurementDueToReasonablyPossibleIncreaseInUnobservableInputRecognisedInCashFlows" xlink:label="loc_thtx_IncreaseDecreaseInFairValueMeasurementDueToReasonablyPossibleIncreaseInUnobservableInputRecognisedInCashFlows" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_IncreaseDecreaseInFairValueMeasurementDueToReasonablyPossibleIncreaseInUnobservableInputRecognisedInCashFlows" xml:lang="en-US">Increase Decrease In Fair Value Measurement Due To Reasonably Possible Increase In Unobservable Input Recognised In Cash Flows</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_IncreaseDecreaseInFairValueMeasurementDueToReasonablyPossibleIncreaseInUnobservableInputRecognisedInCashFlows" xml:lang="en-US">Increase (decrease) in cash flows</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_IncreaseDecreaseInFairValueMeasurementDueToReasonablyPossibleIncreaseInUnobservableInputRecognisedInCashFlows" xlink:to="lab_thtx_IncreaseDecreaseInFairValueMeasurementDueToReasonablyPossibleIncreaseInUnobservableInputRecognisedInCashFlows" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_IncreaseDecreaseInFairValueMeasurementDueToReasonablyPossibleIncreaseInUnobservableInputRecognisedInCashFlows" xml:lang="en-US">Increase decrease in fair value measurement due to reasonably possible increase in unobservable input recognised in cash flows</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseInFairValueMeasurementDueToReasonablyPossibleIncreaseInUnobservableInputRecognisedInProfitOrLossAfterTaxAssets" xlink:label="loc_ifrs-full_IncreaseDecreaseInFairValueMeasurementDueToReasonablyPossibleIncreaseInUnobservableInputRecognisedInProfitOrLossAfterTaxAssets" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_IncreaseDecreaseInFairValueMeasurementDueToReasonablyPossibleIncreaseInUnobservableInputRecognisedInProfitOrLossAfterTaxAssets" xml:lang="en-US">Increase (decrease) in fair value measurement due to reasonably possible increase in unobservable input, recognised in profit or loss, after tax, assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_IncreaseDecreaseInFairValueMeasurementDueToReasonablyPossibleIncreaseInUnobservableInputRecognisedInProfitOrLossAfterTaxAssets" xml:lang="en-US">Increase (decrease) in profit or loss</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseInFairValueMeasurementDueToReasonablyPossibleIncreaseInUnobservableInputRecognisedInProfitOrLossAfterTaxAssets" xlink:to="lab_ifrs-full_IncreaseDecreaseInFairValueMeasurementDueToReasonablyPossibleIncreaseInUnobservableInputRecognisedInProfitOrLossAfterTaxAssets" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_IncreaseDecreaseInFairValueMeasurementDueToReasonablyPossibleIncreaseInUnobservableInputRecognizedInAccumulatedOtherComprehensiveIncomeAfterTaxAssets" xlink:label="loc_thtx_IncreaseDecreaseInFairValueMeasurementDueToReasonablyPossibleIncreaseInUnobservableInputRecognizedInAccumulatedOtherComprehensiveIncomeAfterTaxAssets" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_IncreaseDecreaseInFairValueMeasurementDueToReasonablyPossibleIncreaseInUnobservableInputRecognizedInAccumulatedOtherComprehensiveIncomeAfterTaxAssets" xml:lang="en-US">Increase Decrease In Fair Value Measurement Due To Reasonably Possible Increase In Unobservable Input Recognized In Accumulated Other Comprehensive Income After Tax Assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_IncreaseDecreaseInFairValueMeasurementDueToReasonablyPossibleIncreaseInUnobservableInputRecognizedInAccumulatedOtherComprehensiveIncomeAfterTaxAssets" xml:lang="en-US">Increase (decrease) in accumulated other comprehensive</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_IncreaseDecreaseInFairValueMeasurementDueToReasonablyPossibleIncreaseInUnobservableInputRecognizedInAccumulatedOtherComprehensiveIncomeAfterTaxAssets" xlink:to="lab_thtx_IncreaseDecreaseInFairValueMeasurementDueToReasonablyPossibleIncreaseInUnobservableInputRecognizedInAccumulatedOtherComprehensiveIncomeAfterTaxAssets" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_IncreaseDecreaseInFairValueMeasurementDueToReasonablyPossibleIncreaseInUnobservableInputRecognizedInAccumulatedOtherComprehensiveIncomeAfterTaxAssets" xml:lang="en-US">Increase decrease in fair value measurement due to reasonably possible increase in unobservable input recognised in accumulated other comprehensive income after tax assets.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseInFairValueMeasurementDueToReasonablyPossibleIncreaseInUnobservableInputAssets" xlink:label="loc_ifrs-full_IncreaseDecreaseInFairValueMeasurementDueToReasonablyPossibleIncreaseInUnobservableInputAssets" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_IncreaseDecreaseInFairValueMeasurementDueToReasonablyPossibleIncreaseInUnobservableInputAssets" xml:lang="en-US">Increase (decrease) in fair value measurement due to reasonably possible increase in unobservable input, assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_IncreaseDecreaseInFairValueMeasurementDueToReasonablyPossibleIncreaseInUnobservableInputAssets" xml:lang="en-US">Increase (decrease) in fair value of assets</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseInFairValueMeasurementDueToReasonablyPossibleIncreaseInUnobservableInputAssets" xlink:to="lab_ifrs-full_IncreaseDecreaseInFairValueMeasurementDueToReasonablyPossibleIncreaseInUnobservableInputAssets" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_CreditRiskRelatedToTradeReceivables" xlink:label="loc_thtx_CreditRiskRelatedToTradeReceivables" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_CreditRiskRelatedToTradeReceivables" xml:lang="en-US">Credit Risk Related To Trade Receivables</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_CreditRiskRelatedToTradeReceivables" xml:lang="en-US">Credit risk related to trade receivables</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_CreditRiskRelatedToTradeReceivables" xlink:to="lab_thtx_CreditRiskRelatedToTradeReceivables" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_CreditRiskRelatedToTradeReceivables" xml:lang="en-US">Credit risk related to trade receivables.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_LossOnAllowance" xlink:label="loc_thtx_LossOnAllowance" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_LossOnAllowance" xml:lang="en-US">Loss On Allowance</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_LossOnAllowance" xml:lang="en-US">Loss on allowance</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_LossOnAllowance" xlink:to="lab_thtx_LossOnAllowance" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_LossOnAllowance" xml:lang="en-US">Loss on allowance.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_MinimumCashCashEquivalentsAndShortTermInvestmentsToBeMaintained" xlink:label="loc_thtx_MinimumCashCashEquivalentsAndShortTermInvestmentsToBeMaintained" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_MinimumCashCashEquivalentsAndShortTermInvestmentsToBeMaintained" xml:lang="en-US">Minimum Cash Cash Equivalents And Short Term Investments To Be Maintained</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_MinimumCashCashEquivalentsAndShortTermInvestmentsToBeMaintained" xml:lang="en-US">Minimum cash cash equivalents and short term investments to be maintained</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_MinimumCashCashEquivalentsAndShortTermInvestmentsToBeMaintained" xlink:to="lab_thtx_MinimumCashCashEquivalentsAndShortTermInvestmentsToBeMaintained" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_MinimumCashCashEquivalentsAndShortTermInvestmentsToBeMaintained" xml:lang="en-US">Minimum cash cash equivalents and short term investments to be maintained.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_VariableInterestRateCashAndMarketFundsMember" xlink:label="loc_thtx_VariableInterestRateCashAndMarketFundsMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_VariableInterestRateCashAndMarketFundsMember" xml:lang="en-US">Variable Interest Rate Cash And Market Funds [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_VariableInterestRateCashAndMarketFundsMember" xml:lang="en-US">Cash and market funds</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_VariableInterestRateCashAndMarketFundsMember" xlink:to="lab_thtx_VariableInterestRateCashAndMarketFundsMember" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_BondMember" xlink:label="loc_thtx_BondMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_BondMember" xml:lang="en-US">Bond [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_BondMember" xml:lang="en-US">Bonds</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_BondMember" xlink:to="lab_thtx_BondMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_BondMember" xml:lang="en-US">Bond [member]</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_SecuredOvernightFinancingRateSofrOvernightIndexSwapRatesMember" xlink:label="loc_thtx_SecuredOvernightFinancingRateSofrOvernightIndexSwapRatesMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_SecuredOvernightFinancingRateSofrOvernightIndexSwapRatesMember" xml:lang="en-US">Secured Overnight Financing Rate Sofr Overnight Index Swap Rates [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_SecuredOvernightFinancingRateSofrOvernightIndexSwapRatesMember" xml:lang="en-US">SOFR</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_SecuredOvernightFinancingRateSofrOvernightIndexSwapRatesMember" xlink:to="lab_thtx_SecuredOvernightFinancingRateSofrOvernightIndexSwapRatesMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_SecuredOvernightFinancingRateSofrOvernightIndexSwapRatesMember" xml:lang="en-US">Secured overnight financing rate sofr overnight index Swap rates.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesTable" xlink:label="loc_ifrs-full_DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesTable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesTable" xml:lang="en-US">Disclosure of maturity analysis for non-derivative financial liabilities [table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesTable" xlink:to="lab_ifrs-full_DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesTable" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NotLaterThanOneYearMember" xlink:label="loc_ifrs-full_NotLaterThanOneYearMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_NotLaterThanOneYearMember" xml:lang="en-US">Not later than one year [member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ifrs-full_NotLaterThanOneYearMember" xml:lang="en-US">Less than 1 year</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NotLaterThanOneYearMember" xlink:to="lab_ifrs-full_NotLaterThanOneYearMember" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LaterThanOneYearAndNotLaterThanTwoYearsMember" xlink:label="loc_ifrs-full_LaterThanOneYearAndNotLaterThanTwoYearsMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_LaterThanOneYearAndNotLaterThanTwoYearsMember" xml:lang="en-US">Later than one year and not later than two years [member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_LaterThanOneYearAndNotLaterThanTwoYearsMember" xml:lang="en-US">From 1 to 2 Years</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LaterThanOneYearAndNotLaterThanTwoYearsMember" xlink:to="lab_ifrs-full_LaterThanOneYearAndNotLaterThanTwoYearsMember" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LaterThanThreeYearsMember" xlink:label="loc_ifrs-full_LaterThanThreeYearsMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_LaterThanThreeYearsMember" xml:lang="en-US">Later than three years [member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_LaterThanThreeYearsMember" xml:lang="en-US">More than 3 Years</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LaterThanThreeYearsMember" xlink:to="lab_ifrs-full_LaterThanThreeYearsMember" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesLineItems" xlink:label="loc_ifrs-full_DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesLineItems" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesLineItems" xml:lang="en-US">Disclosure of maturity analysis for non-derivative financial liabilities [line items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesLineItems" xlink:to="lab_ifrs-full_DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesLineItems" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TradeAndOtherPayablesUndiscountedCashFlows" xlink:label="loc_ifrs-full_TradeAndOtherPayablesUndiscountedCashFlows" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_TradeAndOtherPayablesUndiscountedCashFlows" xml:lang="en-US">Trade and other payables, undiscounted cash flows</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_TradeAndOtherPayablesUndiscountedCashFlows" xml:lang="en-US">Accounts payable and accrued liabilities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TradeAndOtherPayablesUndiscountedCashFlows" xlink:to="lab_ifrs-full_TradeAndOtherPayablesUndiscountedCashFlows" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NonderivativeFinancialLiabilitiesUndiscountedCashFlows" xlink:label="loc_ifrs-full_NonderivativeFinancialLiabilitiesUndiscountedCashFlows" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_NonderivativeFinancialLiabilitiesUndiscountedCashFlows" xml:lang="en-US">Non-derivative financial liabilities, undiscounted cash flows</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_ifrs-full_NonderivativeFinancialLiabilitiesUndiscountedCashFlows" xml:lang="en-US">Financial liabilities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NonderivativeFinancialLiabilitiesUndiscountedCashFlows" xlink:to="lab_ifrs-full_NonderivativeFinancialLiabilitiesUndiscountedCashFlows" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_NonderivativeFinancialLiabilities" xlink:label="loc_thtx_NonderivativeFinancialLiabilities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_NonderivativeFinancialLiabilities" xml:lang="en-US">Nonderivative Financial Liabilities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_thtx_NonderivativeFinancialLiabilities" xml:lang="en-US">Financial liabilities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_NonderivativeFinancialLiabilities" xlink:to="lab_thtx_NonderivativeFinancialLiabilities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_NonderivativeFinancialLiabilities" xml:lang="en-US">Nonderivative financial liabilities.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_LeaseLiabilitiesUndiscountedCashFlows" xlink:label="loc_thtx_LeaseLiabilitiesUndiscountedCashFlows" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_LeaseLiabilitiesUndiscountedCashFlows" xml:lang="en-US">Lease Liabilities Undiscounted Cash Flows</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_LeaseLiabilitiesUndiscountedCashFlows" xml:lang="en-US">Lease Liabilities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_LeaseLiabilitiesUndiscountedCashFlows" xlink:to="lab_thtx_LeaseLiabilitiesUndiscountedCashFlows" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_LeaseLiabilitiesUndiscountedCashFlows" xml:lang="en-US">Lease liabilities undiscounted cash flows.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_CurrentPositionOfTermLoanIncludingInterest" xlink:label="loc_thtx_CurrentPositionOfTermLoanIncludingInterest" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_CurrentPositionOfTermLoanIncludingInterest" xml:lang="en-US">Current Position Of Term Loan, Including Interest</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_CurrentPositionOfTermLoanIncludingInterest" xml:lang="en-US">Term loan, including interest, Carrying amount</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_CurrentPositionOfTermLoanIncludingInterest" xlink:to="lab_thtx_CurrentPositionOfTermLoanIncludingInterest" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_CurrentPositionOfTermLoanIncludingInterest" xml:lang="en-US">Current position of term loan, including interest.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_LongTermLoanUndiscountedCashFlows" xlink:label="loc_thtx_LongTermLoanUndiscountedCashFlows" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_LongTermLoanUndiscountedCashFlows" xml:lang="en-US">Long term loan undiscounted cash flows</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_LongTermLoanUndiscountedCashFlows" xml:lang="en-US">Facility loan / Term loan, including interest</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_LongTermLoanUndiscountedCashFlows" xlink:to="lab_thtx_LongTermLoanUndiscountedCashFlows" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_LongTermLoanUndiscountedCashFlows" xml:lang="en-US">Long term loan undiscounted cash flows</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsTable" xlink:label="loc_ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsTable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsTable" xml:lang="en-US">Disclosure of nature and extent of risks arising from financial instruments [table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsTable" xlink:to="lab_ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsTable" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TypesOfRisksAxis" xlink:label="loc_ifrs-full_TypesOfRisksAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_TypesOfRisksAxis" xml:lang="en-US">Types of risks [axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TypesOfRisksAxis" xlink:to="lab_ifrs-full_TypesOfRisksAxis" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TypesOfRisksDomain" xlink:label="loc_ifrs-full_TypesOfRisksDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_TypesOfRisksDomain" xml:lang="en-US">Types of risks [domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TypesOfRisksDomain" xlink:to="lab_ifrs-full_TypesOfRisksDomain" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrencyRiskMember" xlink:label="loc_ifrs-full_CurrencyRiskMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_CurrencyRiskMember" xml:lang="en-US">Currency risk [member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_CurrencyRiskMember" xml:lang="en-US">Currency risk</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrencyRiskMember" xlink:to="lab_ifrs-full_CurrencyRiskMember" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsLineItems" xlink:label="loc_ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsLineItems" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsLineItems" xml:lang="en-US">Disclosure of nature and extent of risks arising from financial instruments [line items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsLineItems" xlink:to="lab_ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsLineItems" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentAssetsLiabilities" xlink:label="loc_ifrs-full_CurrentAssetsLiabilities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_CurrentAssetsLiabilities" xml:lang="en-US">Current assets (liabilities)</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_ifrs-full_CurrentAssetsLiabilities" xml:lang="en-US">Total exposure</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentAssetsLiabilities" xlink:to="lab_ifrs-full_CurrentAssetsLiabilities" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_TaxCreditsAndGrantsReceivable" xlink:label="loc_thtx_TaxCreditsAndGrantsReceivable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_TaxCreditsAndGrantsReceivable" xml:lang="en-US">Tax credits and grants receivable</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_TaxCreditsAndGrantsReceivable" xml:lang="en-US">Tax credits and grants receivable</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_TaxCreditsAndGrantsReceivable" xlink:to="lab_thtx_TaxCreditsAndGrantsReceivable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_TaxCreditsAndGrantsReceivable" xml:lang="en-US">Tax credits and grants receivable.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_TotalLeaseLiabilities" xlink:label="loc_thtx_TotalLeaseLiabilities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_TotalLeaseLiabilities" xml:lang="en-US">Total Lease Liabilities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_thtx_TotalLeaseLiabilities" xml:lang="en-US">Lease liabilities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_TotalLeaseLiabilities" xlink:to="lab_thtx_TotalLeaseLiabilities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_TotalLeaseLiabilities" xml:lang="en-US">Total lease liabilities.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentProvisions" xlink:label="loc_ifrs-full_CurrentProvisions" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_CurrentProvisions" xml:lang="en-US">Current provisions</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_ifrs-full_CurrentProvisions" xml:lang="en-US">Provisions</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentProvisions" xlink:to="lab_ifrs-full_CurrentProvisions" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AverageForeignExchangeRate" xlink:label="loc_ifrs-full_AverageForeignExchangeRate" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_AverageForeignExchangeRate" xml:lang="en-US">Average foreign exchange rate</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_AverageForeignExchangeRate" xml:lang="en-US">Average rate</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AverageForeignExchangeRate" xlink:to="lab_ifrs-full_AverageForeignExchangeRate" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClosingForeignExchangeRate" xlink:label="loc_ifrs-full_ClosingForeignExchangeRate" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ClosingForeignExchangeRate" xml:lang="en-US">Closing foreign exchange rate</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_ClosingForeignExchangeRate" xml:lang="en-US">Reporting date rate</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClosingForeignExchangeRate" xlink:to="lab_ifrs-full_ClosingForeignExchangeRate" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/currency/2024/currency-2024.xsd#currency_EUR" xlink:label="loc_currency_EUR" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_currency_EUR" xml:lang="en-US">Euro Member Countries, Euro</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_currency_EUR" xml:lang="en-US">Euro &#8211; US$</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_currency_EUR" xlink:to="lab_currency_EUR" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_PositiveNegativeImpactOfForeignExchangeGainLossSensitivityAnalysis" xlink:label="loc_thtx_PositiveNegativeImpactOfForeignExchangeGainLossSensitivityAnalysis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_PositiveNegativeImpactOfForeignExchangeGainLossSensitivityAnalysis" xml:lang="en-US">Positive Negative Impact of Foreign Exchange Gain loss Sensitivity Analysis</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_PositiveNegativeImpactOfForeignExchangeGainLossSensitivityAnalysis" xml:lang="en-US">Positive (negative) impact</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_PositiveNegativeImpactOfForeignExchangeGainLossSensitivityAnalysis" xlink:to="lab_thtx_PositiveNegativeImpactOfForeignExchangeGainLossSensitivityAnalysis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_PositiveNegativeImpactOfForeignExchangeGainLossSensitivityAnalysis" xml:lang="en-US">Positive negative impact of foreign exchange gain loss sensitivity analysis.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalTable" xlink:label="loc_ifrs-full_DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalTable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalTable" xml:lang="en-US">Disclosure of objectives, policies and processes for managing capital [table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalTable" xlink:to="lab_ifrs-full_DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalTable" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_CashbondAndMoneyMarketFundsMember" xlink:label="loc_thtx_CashbondAndMoneyMarketFundsMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_CashbondAndMoneyMarketFundsMember" xml:lang="en-US">Cash Bond And Money Market Funds [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_CashbondAndMoneyMarketFundsMember" xml:lang="en-US">Cash bond and money market funds</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_CashbondAndMoneyMarketFundsMember" xlink:to="lab_thtx_CashbondAndMoneyMarketFundsMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_CashbondAndMoneyMarketFundsMember" xml:lang="en-US">Cash,Bond And Money Market Funds.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalLineItems" xlink:label="loc_ifrs-full_DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalLineItems" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalLineItems" xml:lang="en-US">Disclosure of objectives, policies and processes for managing capital [line items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalLineItems" xlink:to="lab_ifrs-full_DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalLineItems" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_CashBondAndMoneyMarketFunds" xlink:label="loc_thtx_CashBondAndMoneyMarketFunds" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_CashBondAndMoneyMarketFunds" xml:lang="en-US">Cash Bond and Money Market Funds</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/definitionGuidance" xlink:label="lab_thtx_CashBondAndMoneyMarketFunds" xml:lang="en-US">Cash,bond and money market funds</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_CashBondAndMoneyMarketFunds" xlink:to="lab_thtx_CashBondAndMoneyMarketFunds" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_CashBondAndMoneyMarketFunds" xml:lang="en-US">Cash bond and money market funds.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfLiabilitiesAbstract" xlink:label="loc_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfLiabilitiesAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfLiabilitiesAbstract" xml:lang="en-US">Disclosure of significant unobservable inputs used in fair value measurement of liabilities [abstract]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfLiabilitiesAbstract" xlink:to="lab_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfLiabilitiesAbstract" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfLiabilitiesTable" xlink:label="loc_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfLiabilitiesTable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfLiabilitiesTable" xml:lang="en-US">Disclosure of significant unobservable inputs used in fair value measurement of liabilities [table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfLiabilitiesTable" xlink:to="lab_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfLiabilitiesTable" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AtFairValueMember" xlink:label="loc_ifrs-full_AtFairValueMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_AtFairValueMember" xml:lang="en-US">At fair value [member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_AtFairValueMember" xml:lang="en-US">At fair value [member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AtFairValueMember" xlink:to="lab_ifrs-full_AtFairValueMember" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_WarrantReserveMember" xlink:label="loc_ifrs-full_WarrantReserveMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_WarrantReserveMember" xml:lang="en-US">Warrant reserve [member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_WarrantReserveMember" xml:lang="en-US">Warrant reserve [member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_WarrantReserveMember" xlink:to="lab_ifrs-full_WarrantReserveMember" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RevenueMultipleMeasurementInputMember" xlink:label="loc_ifrs-full_RevenueMultipleMeasurementInputMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_RevenueMultipleMeasurementInputMember" xml:lang="en-US">Revenue multiple, measurement input [member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_RevenueMultipleMeasurementInputMember" xml:lang="en-US">Revenue multiple, measurement input [member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RevenueMultipleMeasurementInputMember" xlink:to="lab_ifrs-full_RevenueMultipleMeasurementInputMember" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfLiabilitiesLineItems" xlink:label="loc_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfLiabilitiesLineItems" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfLiabilitiesLineItems" xml:lang="en-US">Disclosure of significant unobservable inputs used in fair value measurement of liabilities [line items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfLiabilitiesLineItems" xlink:to="lab_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfLiabilitiesLineItems" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_SignificantUnobservableInputLiabilitiesBasisPoints" xlink:label="loc_thtx_SignificantUnobservableInputLiabilitiesBasisPoints" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_SignificantUnobservableInputLiabilitiesBasisPoints" xml:lang="en-US">Significant Unobservable Input Liabilities Basis Points</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_SignificantUnobservableInputLiabilitiesBasisPoints" xml:lang="en-US">Expected volatility unobservable input, liabilities, basis points</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_SignificantUnobservableInputLiabilitiesBasisPoints" xlink:to="lab_thtx_SignificantUnobservableInputLiabilitiesBasisPoints" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_SignificantUnobservableInputLiabilitiesBasisPoints" xml:lang="en-US">Significant unobservable input liabilities basis points.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfContingentLiabilitiesAbstract" xlink:label="loc_ifrs-full_DisclosureOfContingentLiabilitiesAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfContingentLiabilitiesAbstract" xml:lang="en-US">Disclosure of contingent liabilities [abstract]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfContingentLiabilitiesAbstract" xlink:to="lab_ifrs-full_DisclosureOfContingentLiabilitiesAbstract" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DisclosureOfCommitmentsTable" xlink:label="loc_thtx_DisclosureOfCommitmentsTable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DisclosureOfCommitmentsTable" xml:lang="en-US">Disclosure of Commitments [Table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DisclosureOfCommitmentsTable" xlink:to="lab_thtx_DisclosureOfCommitmentsTable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DisclosureOfCommitmentsTable" xml:lang="en-US">Disclosure of Commitments [Table]</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_DisclosureOfCommitmentsLineItems" xlink:label="loc_thtx_DisclosureOfCommitmentsLineItems" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_DisclosureOfCommitmentsLineItems" xml:lang="en-US">Disclosure of Commitments [Line Items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_DisclosureOfCommitmentsLineItems" xlink:to="lab_thtx_DisclosureOfCommitmentsLineItems" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_DisclosureOfCommitmentsLineItems" xml:lang="en-US">Disclosure of Commitments [Line Items]</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_BorrowingsOutstanding" xlink:label="loc_thtx_BorrowingsOutstanding" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_BorrowingsOutstanding" xml:lang="en-US">Borrowings Outstanding</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_BorrowingsOutstanding" xml:lang="en-US">Line of credit facility outstanding</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_BorrowingsOutstanding" xlink:to="lab_thtx_BorrowingsOutstanding" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_BorrowingsOutstanding" xml:lang="en-US">Borrowings outstanding.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_LongTermPurchaseCommitmentsMinimumPaymentsRequired" xlink:label="loc_thtx_LongTermPurchaseCommitmentsMinimumPaymentsRequired" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_LongTermPurchaseCommitmentsMinimumPaymentsRequired" xml:lang="en-US">Long Term Purchase Commitments Minimum Payments Required</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_LongTermPurchaseCommitmentsMinimumPaymentsRequired" xml:lang="en-US">Long term purchase commitments</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_LongTermPurchaseCommitmentsMinimumPaymentsRequired" xlink:to="lab_thtx_LongTermPurchaseCommitmentsMinimumPaymentsRequired" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_LongTermPurchaseCommitmentsMinimumPaymentsRequired" xml:lang="en-US">Long term purchase commitments minimum payments required</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_AmountOfRegularMilestonePayments" xlink:label="loc_thtx_AmountOfRegularMilestonePayments" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_AmountOfRegularMilestonePayments" xml:lang="en-US">Amount Of Regular Milestone Payments</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_AmountOfRegularMilestonePayments" xml:lang="en-US">Amount of regular milestone payments</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_AmountOfRegularMilestonePayments" xlink:to="lab_thtx_AmountOfRegularMilestonePayments" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_AmountOfRegularMilestonePayments" xml:lang="en-US">Amount of regular milestone payments.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_AmountOfClinicalDevelopmentMilestonePayments" xlink:label="loc_thtx_AmountOfClinicalDevelopmentMilestonePayments" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_AmountOfClinicalDevelopmentMilestonePayments" xml:lang="en-US">Amount Of Clinical Development Milestone Payments</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_AmountOfClinicalDevelopmentMilestonePayments" xml:lang="en-US">Amount of clinical development milestone payments</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_AmountOfClinicalDevelopmentMilestonePayments" xlink:to="lab_thtx_AmountOfClinicalDevelopmentMilestonePayments" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_AmountOfClinicalDevelopmentMilestonePayments" xml:lang="en-US">Amount of clinical development milestone payments.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_LetterOfCreditPayables" xlink:label="loc_thtx_LetterOfCreditPayables" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_LetterOfCreditPayables" xml:lang="en-US">Letter Of Credit Payables</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_LetterOfCreditPayables" xml:lang="en-US">Letter of credit payables</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_LetterOfCreditPayables" xlink:to="lab_thtx_LetterOfCreditPayables" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_LetterOfCreditPayables" xml:lang="en-US">Letter of credit payables.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_CommitmentsAxis" xlink:label="loc_thtx_CommitmentsAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_CommitmentsAxis" xml:lang="en-US">Commitments [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_CommitmentsAxis" xlink:to="lab_thtx_CommitmentsAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_CommitmentsAxis" xml:lang="en-US">Commitments [Axis]</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_CommitmentsDomain" xlink:label="loc_thtx_CommitmentsDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_CommitmentsDomain" xml:lang="en-US">Commitments [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_CommitmentsDomain" xlink:to="lab_thtx_CommitmentsDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_CommitmentsDomain" xml:lang="en-US">Commitments [Line Items]</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_MultidosePassInjectorDevelopedMember" xlink:label="loc_thtx_MultidosePassInjectorDevelopedMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_MultidosePassInjectorDevelopedMember" xml:lang="en-US">Multidose pass injector developed [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_MultidosePassInjectorDevelopedMember" xml:lang="en-US">Multidose pass injector developed</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_MultidosePassInjectorDevelopedMember" xlink:to="lab_thtx_MultidosePassInjectorDevelopedMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_MultidosePassInjectorDevelopedMember" xml:lang="en-US">Multi-dose pass injector developed.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfContingentLiabilitiesAxis" xlink:label="loc_ifrs-full_ClassesOfContingentLiabilitiesAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ClassesOfContingentLiabilitiesAxis" xml:lang="en-US">Classes of contingent liabilities [axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfContingentLiabilitiesAxis" xlink:to="lab_ifrs-full_ClassesOfContingentLiabilitiesAxis" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfContingentLiabilitiesDomain" xlink:label="loc_ifrs-full_ClassesOfContingentLiabilitiesDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_ClassesOfContingentLiabilitiesDomain" xml:lang="en-US">Classes of contingent liabilities [domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfContingentLiabilitiesDomain" xlink:to="lab_ifrs-full_ClassesOfContingentLiabilitiesDomain" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfOperatingSegmentsTable" xlink:label="loc_ifrs-full_DisclosureOfOperatingSegmentsTable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfOperatingSegmentsTable" xml:lang="en-US">Disclosure of operating segments [table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfOperatingSegmentsTable" xlink:to="lab_ifrs-full_DisclosureOfOperatingSegmentsTable" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfOperatingSegmentsLineItems" xlink:label="loc_ifrs-full_DisclosureOfOperatingSegmentsLineItems" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfOperatingSegmentsLineItems" xml:lang="en-US">Disclosure of operating segments [line items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfOperatingSegmentsLineItems" xlink:to="lab_ifrs-full_DisclosureOfOperatingSegmentsLineItems" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_SegmentsAxis" xlink:label="loc_ifrs-full_SegmentsAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_SegmentsAxis" xml:lang="en-US">Segments [axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_SegmentsAxis" xlink:to="lab_ifrs-full_SegmentsAxis" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_SegmentsDomain" xlink:label="loc_ifrs-full_SegmentsDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_SegmentsDomain" xml:lang="en-US">Segments [domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_SegmentsDomain" xlink:to="lab_ifrs-full_SegmentsDomain" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AllOtherSegmentsMember" xlink:label="loc_ifrs-full_AllOtherSegmentsMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_AllOtherSegmentsMember" xml:lang="en-US">All other segments [member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_AllOtherSegmentsMember" xml:lang="en-US">Others</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AllOtherSegmentsMember" xlink:to="lab_ifrs-full_AllOtherSegmentsMember" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_RxCrossRoadsMember" xlink:label="loc_thtx_RxCrossRoadsMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_RxCrossRoadsMember" xml:lang="en-US">Rx Cross Roads [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_RxCrossRoadsMember" xml:lang="en-US">RxCrossroads</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_RxCrossRoadsMember" xlink:to="lab_thtx_RxCrossRoadsMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_RxCrossRoadsMember" xml:lang="en-US">Rx Cross Roads.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_KeyManagementPersonnelCompensationShorttermEmployeeBenefits" xlink:label="loc_ifrs-full_KeyManagementPersonnelCompensationShorttermEmployeeBenefits" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_KeyManagementPersonnelCompensationShorttermEmployeeBenefits" xml:lang="en-US">Key management personnel compensation, short-term employee benefits</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_KeyManagementPersonnelCompensationShorttermEmployeeBenefits" xml:lang="en-US">Short-term employee benefits</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_KeyManagementPersonnelCompensationShorttermEmployeeBenefits" xlink:to="lab_ifrs-full_KeyManagementPersonnelCompensationShorttermEmployeeBenefits" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_KeyManagementPersonnelCompensationPostemploymentBenefits" xlink:label="loc_ifrs-full_KeyManagementPersonnelCompensationPostemploymentBenefits" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_KeyManagementPersonnelCompensationPostemploymentBenefits" xml:lang="en-US">Key management personnel compensation, post-employment benefits</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_KeyManagementPersonnelCompensationPostemploymentBenefits" xml:lang="en-US">Post-employment benefits</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_KeyManagementPersonnelCompensationPostemploymentBenefits" xlink:to="lab_ifrs-full_KeyManagementPersonnelCompensationPostemploymentBenefits" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_KeyManagementPersonnelCompensationSharebasedPayment" xlink:label="loc_ifrs-full_KeyManagementPersonnelCompensationSharebasedPayment" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_KeyManagementPersonnelCompensationSharebasedPayment" xml:lang="en-US">Key management personnel compensation, share-based payment</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ifrs-full_KeyManagementPersonnelCompensationSharebasedPayment" xml:lang="en-US">Share-based compensation</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_KeyManagementPersonnelCompensationSharebasedPayment" xlink:to="lab_ifrs-full_KeyManagementPersonnelCompensationSharebasedPayment" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_KeyManagementPersonnelCompensation" xlink:label="loc_ifrs-full_KeyManagementPersonnelCompensation" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_KeyManagementPersonnelCompensation" xml:lang="en-US">Key management personnel compensation</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_ifrs-full_KeyManagementPersonnelCompensation" xml:lang="en-US">Key management personnel compensation</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_KeyManagementPersonnelCompensation" xlink:to="lab_ifrs-full_KeyManagementPersonnelCompensation" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesAbstract" xlink:label="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesAbstract" xml:lang="en-US">Disclosure of transactions between related parties [abstract]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesAbstract" xlink:to="lab_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesAbstract" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_RelatedPartyPercentageOfVotingRightsHeld" xlink:label="loc_thtx_RelatedPartyPercentageOfVotingRightsHeld" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_RelatedPartyPercentageOfVotingRightsHeld" xml:lang="en-US">Related Party Percentage Of Voting Rights Held</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_RelatedPartyPercentageOfVotingRightsHeld" xml:lang="en-US">Related party percentage of voting shares held</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_RelatedPartyPercentageOfVotingRightsHeld" xlink:to="lab_thtx_RelatedPartyPercentageOfVotingRightsHeld" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_RelatedPartyPercentageOfVotingRightsHeld" xml:lang="en-US">Related party percentage of voting shares held.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodTable" xlink:label="loc_ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodTable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodTable" xml:lang="en-US">Disclosure of non-adjusting events after reporting period [table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodTable" xlink:to="lab_ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodTable" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NonadjustingEventsAfterReportingPeriodAxis" xlink:label="loc_ifrs-full_NonadjustingEventsAfterReportingPeriodAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_NonadjustingEventsAfterReportingPeriodAxis" xml:lang="en-US">Non-adjusting events after reporting period [axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NonadjustingEventsAfterReportingPeriodAxis" xlink:to="lab_ifrs-full_NonadjustingEventsAfterReportingPeriodAxis" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NonadjustingEventsAfterReportingPeriodDomain" xlink:label="loc_ifrs-full_NonadjustingEventsAfterReportingPeriodDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_NonadjustingEventsAfterReportingPeriodDomain" xml:lang="en-US">Non-adjusting events after reporting period [domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NonadjustingEventsAfterReportingPeriodDomain" xlink:to="lab_ifrs-full_NonadjustingEventsAfterReportingPeriodDomain" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems" xlink:label="loc_ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems" xml:lang="en-US">Disclosure of non-adjusting events after reporting period [line items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems" xlink:to="lab_ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_PeriodOfRoyaltiesOnAnnualNetSalesOwed" xlink:label="loc_thtx_PeriodOfRoyaltiesOnAnnualNetSalesOwed" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_PeriodOfRoyaltiesOnAnnualNetSalesOwed" xml:lang="en-US">Period Of Royalties On Annual Net Sales Owed</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_PeriodOfRoyaltiesOnAnnualNetSalesOwed" xlink:to="lab_thtx_PeriodOfRoyaltiesOnAnnualNetSalesOwed" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_PeriodOfRoyaltiesOnAnnualNetSalesOwed" xml:lang="en-US">Period of royalties on annual net sales owed.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_CashPaymentOnAnnualSalesTarget" xlink:label="loc_thtx_CashPaymentOnAnnualSalesTarget" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_CashPaymentOnAnnualSalesTarget" xml:lang="en-US">Cash Payment On Annual Sales Target</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_CashPaymentOnAnnualSalesTarget" xlink:to="lab_thtx_CashPaymentOnAnnualSalesTarget" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_CashPaymentOnAnnualSalesTarget" xml:lang="en-US">Cash payment on annual sales target.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_CashPaymentOnApprovalMilestone" xlink:label="loc_thtx_CashPaymentOnApprovalMilestone" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_CashPaymentOnApprovalMilestone" xml:lang="en-US">Cash Payment On Approval Milestone</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_CashPaymentOnApprovalMilestone" xlink:to="lab_thtx_CashPaymentOnApprovalMilestone" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_CashPaymentOnApprovalMilestone" xml:lang="en-US">Cash payment on approval milestone.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_TariffRateOnImportedGoods" xlink:label="loc_thtx_TariffRateOnImportedGoods" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_TariffRateOnImportedGoods" xml:lang="en-US">Tariff Rate On Imported Goods</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_TariffRateOnImportedGoods" xml:lang="en-US">Tariff rate on imported goods</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_TariffRateOnImportedGoods" xlink:to="lab_thtx_TariffRateOnImportedGoods" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_TariffRateOnImportedGoods" xml:lang="en-US">Tariff rate on imported goods.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_UpfrontPayment" xlink:label="loc_thtx_UpfrontPayment" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_UpfrontPayment" xml:lang="en-US">Upfront Payment</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_thtx_UpfrontPayment" xml:lang="en-US">Upfront payment</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_UpfrontPayment" xlink:to="lab_thtx_UpfrontPayment" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_UpfrontPayment" xml:lang="en-US">Upfront payment.</label>
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_SaleOfStockAxis" xlink:label="loc_thtx_SaleOfStockAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_SaleOfStockAxis" xml:lang="en-US">Sale Of Stock [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_SaleOfStockAxis" xlink:to="lab_thtx_SaleOfStockAxis" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_SaleOfStockMember" xlink:label="loc_thtx_SaleOfStockMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_SaleOfStockMember" xml:lang="en-US">Sale Of Stock [Member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_SaleOfStockMember" xlink:to="lab_thtx_SaleOfStockMember" />
<loc xlink:type="locator" xlink:href="thtx-20241130.xsd#thtx_LonisPharmaceuticalsIncMember" xlink:label="loc_thtx_LonisPharmaceuticalsIncMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_thtx_LonisPharmaceuticalsIncMember" xml:lang="en-US">Lonis Pharmaceuticals, Inc [Member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_thtx_LonisPharmaceuticalsIncMember" xlink:to="lab_thtx_LonisPharmaceuticalsIncMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_thtx_LonisPharmaceuticalsIncMember" xml:lang="en-US">Lonis Pharmaceuticals, Inc.</label>
</labelLink>
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