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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 QpnqY2J9DXVkGS7V20MxaRY1mFWjflErPeqCo+15H+sLlPKvLn6+OvSHa14xbnfM
 pOq5rkEMasNiLkUa1Genfw==

<SEC-DOCUMENT>0001209191-04-015212.txt : 20040310
<SEC-HEADER>0001209191-04-015212.hdr.sgml : 20040310
<ACCEPTANCE-DATETIME>20040310161400
ACCESSION NUMBER:		0001209191-04-015212
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20040309
FILED AS OF DATE:		20040310

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			HUTTON EDWARD L
		CENTRAL INDEX KEY:			0001224639

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-08269
		FILM NUMBER:		04660423

	BUSINESS ADDRESS:	
		STREET 1:		C/O OMNICARE INC
		STREET 2:		100 E RIVER CENTER BLVD 16TH FLOOR
		CITY:			COVINGTON
		STATE:			KY
		ZIP:			41011
		BUSINESS PHONE:		8593923317

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			OMNICARE INC
		CENTRAL INDEX KEY:			0000353230
		STANDARD INDUSTRIAL CLASSIFICATION:	RETAIL-DRUG STORES AND PROPRIETARY STORES [5912]
		IRS NUMBER:				311001351
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		100 E RIVERCENTER BLVD
		STREET 2:		STE 1600
		CITY:			COVINGTON
		STATE:			KY
		ZIP:			41101
		BUSINESS PHONE:		6063923300

	MAIL ADDRESS:	
		STREET 1:		100 E RIVERCENTER BLVD
		STREET 2:		STE 1600
		CITY:			COVINGTON
		STATE:			KY
		ZIP:			41101
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0201</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2004-03-09</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000353230</issuerCik>
        <issuerName>OMNICARE INC</issuerName>
        <issuerTradingSymbol>NYSE: OCR</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001224639</rptOwnerCik>
            <rptOwnerName>HUTTON EDWARD L</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>255 E. FIFTH STREET, SUITE 2600</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>CINCINNATI</rptOwnerCity>
            <rptOwnerState>OH</rptOwnerState>
            <rptOwnerZipCode>45202</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chairman of the Board</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <transactionDate>
                <value>2004-03-09</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>10272.0000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>45.9500</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>391084.0000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">The transaction reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 22, 2003.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>EDWARD L. HUTTON

/s/ Thomas Marsh, Attorney-in-fact for Edward L. Hutton (POA on file)</signatureName>
        <signatureDate>2004-03-10</signatureDate>
    </ownerSignature>
</ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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