<SUBMISSION>
<ACCESSION-NUMBER>0001187154-04-000004
<TYPE>4
<PUBLIC-DOCUMENT-COUNT>1
<PERIOD>20040430
<FILING-DATE>20040503
<ISSUER>
<COMPANY-DATA>
<CONFORMED-NAME>PHARMACOPEIA INC
<CIK>0001002388
<ASSIGNED-SIC>7372
<IRS-NUMBER>330557266
<STATE-OF-INCORPORATION>DE
<FISCAL-YEAR-END>1231
</COMPANY-DATA>
<BUSINESS-ADDRESS>
<STREET1>CN 5350
<CITY>PRINCETON
<STATE>NJ
<ZIP>08543-5350
<PHONE>6094523600
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>CN 5350
<CITY>PRINCETON
<STATE>NJ
<ZIP>08543-5350
</MAIL-ADDRESS>
</ISSUER>
<REPORTING-OWNER>
<OWNER-DATA>
<CONFORMED-NAME>BALDINO FRANK JR
<CIK>0001187154
</OWNER-DATA>
<FILING-VALUES>
<FORM-TYPE>4
<ACT>34
<FILE-NUMBER>000-27188
<FILM-NUMBER>04773214
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>145 BRANDYWINE PARKWAY
<CITY>WEST CHESTER
<STATE>PA
<ZIP>19380
<PHONE>6103440200
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>C/O VIROPHARMA INC
<STREET2>405 EAGLEVIEW BLVD
<CITY>EXTON
<STATE>PA
<ZIP>19341
</MAIL-ADDRESS>
</REPORTING-OWNER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>bal187.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2004-04-30</periodOfReport>

    <notSubjectToSection16>1</notSubjectToSection16>

    <issuer>
        <issuerCik>0001002388</issuerCik>
        <issuerName>PHARMACOPEIA INC</issuerName>
        <issuerTradingSymbol>ACCL</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001187154</rptOwnerCik>
            <rptOwnerName>BALDINO FRANK JR</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>P.O. BOX 5350</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>PRINCETON</rptOwnerCity>
            <rptOwnerState>NJ</rptOwnerState>
            <rptOwnerZipCode>085435350</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <footnotes></footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>By: Albert Essilfie (POA on file)</signatureName>
        <signatureDate>2004-05-03</signatureDate>
    </ownerSignature>
</ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SUBMISSION>
