-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 InFu99g+cYZRSrLT3RqUslMcgK7X/SumPWKq6qoLullwTi7VVgP+/3TqJk5cZ8ym
 GLmC//H9KLByBRstHUlfIQ==

<SEC-DOCUMENT>0000885590-10-000005.txt : 20100525
<SEC-HEADER>0000885590-10-000005.hdr.sgml : 20100525
<ACCEPTANCE-DATETIME>20100525103221
ACCESSION NUMBER:		0000885590-10-000005
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20100521
FILED AS OF DATE:		20100525
DATE AS OF CHANGE:		20100525

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Laidley David H.
		CENTRAL INDEX KEY:			0001451762

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-14956
		FILM NUMBER:		10855888

	MAIL ADDRESS:	
		STREET 1:		1 PLACE VILLA MARIE - SUITE 3000
		CITY:			MONTREAL
		STATE:			A8
		ZIP:			H3B 4T9

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BIOVAIL Corp
		CENTRAL INDEX KEY:			0000885590
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			A6
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		7150 MISSISSAUGA ROAD
		STREET 2:		MISSISSAUGA
		CITY:			ONTARIO
		STATE:			A6
		ZIP:			00000
		BUSINESS PHONE:		905 286-3000

	MAIL ADDRESS:	
		STREET 1:		7150 MISSISSAUGA ROAD
		STREET 2:		MISSISSAUGA
		CITY:			ONTARIO
		STATE:			A6
		ZIP:			00000

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	BIOVAIL CORP INTERNATIONAL
		DATE OF NAME CHANGE:	19960522
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2010-05-21</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000885590</issuerCik>
        <issuerName>BIOVAIL Corp</issuerName>
        <issuerTradingSymbol>bvf</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001451762</rptOwnerCik>
            <rptOwnerName>Laidley David H.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O BIOVAIL CORPORATION</rptOwnerStreet1>
            <rptOwnerStreet2>7150 MISSISSAUGA ROAD</rptOwnerStreet2>
            <rptOwnerCity>MISSISSAUGA</rptOwnerCity>
            <rptOwnerState>A6</rptOwnerState>
            <rptOwnerZipCode>L5N 8M5</rptOwnerZipCode>
            <rptOwnerStateDescription>ONTARIO, CANADA</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Deferred Share Units</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2010-05-21</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F2"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>11059</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F1"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock, no par value</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>11059</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>45100</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Each Deferred Share Unit (&quot;DSU&quot;) entitles its holder, upon ceasing to be a director, to receive an amount of cash having the same value as one share of Common Stock, no par value, of Biovail Corporation (the &quot;Corporation&quot;) at such time.</footnote>
        <footnote id="F2">Annual grant of DSUs within three business days following the election or appointment of any Director pursuant to the Corporation's DSU plan.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/Angie Palmer, by Power-of-Attorney</signatureName>
        <signatureDate>2010-05-25</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----