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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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 qZWPHmP9LdK/UpgIW06Zvg==

<SEC-DOCUMENT>0001250729-04-000004.txt : 20040213
<SEC-HEADER>0001250729-04-000004.hdr.sgml : 20040213
<ACCEPTANCE-DATETIME>20040213155345
ACCESSION NUMBER:		0001250729-04-000004
CONFORMED SUBMISSION TYPE:	4/A
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20040107
FILED AS OF DATE:		20040213

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			PSYCHEMEDICS CORP
		CENTRAL INDEX KEY:			0000806517
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-MEDICAL LABORATORIES [8071]
		IRS NUMBER:				581701987
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1280 MASSACHUSETTS AVENUE
		STREET 2:		SUITE 200
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02138
		BUSINESS PHONE:		6178687455

	MAIL ADDRESS:	
		STREET 1:		1280 MASSACHUSETTS AVE
		STREET 2:		SUITE 200
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02138

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			CHRISTOPH RICHARD T
		CENTRAL INDEX KEY:			0000947766

	FILING VALUES:
		FORM TYPE:		4/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-13738
		FILM NUMBER:		04598958

	BUSINESS ADDRESS:	
		STREET 1:		C/O CHRISTOPH SECURITIES INC
		STREET 2:		1156 LYNETTE DR P O BOX 752
		CITY:			LAKE FOREST
		STATE:			IL
		ZIP:			60045
		BUSINESS PHONE:		7082346400

	MAIL ADDRESS:	
		STREET 1:		C/O CHRISTOPH SECURITIES INC
		STREET 2:		1156 LYNETTE DR P O BOX 752
		CITY:			LAKE FOREST
		STATE:			IL
		ZIP:			60045
</SEC-HEADER>
<DOCUMENT>
<TYPE>4/A
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0201</schemaVersion>

    <documentType>4/A</documentType>

    <periodOfReport>2004-01-07</periodOfReport>

    <dateOfOriginalSubmission>2004-01-09</dateOfOriginalSubmission>

    <issuer>
        <issuerCik>0000806517</issuerCik>
        <issuerName>PSYCHEMEDICS CORP</issuerName>
        <issuerTradingSymbol>PMD</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000947766</rptOwnerCik>
            <rptOwnerName>CHRISTOPH RICHARD T</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>4601 GULF SHORE BLVD N.</rptOwnerStreet1>
            <rptOwnerStreet2>UNIT 6</rptOwnerStreet2>
            <rptOwnerCity>NAPLES</rptOwnerCity>
            <rptOwnerState>FL</rptOwnerState>
            <rptOwnerZipCode>34103</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2004-01-07</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>50000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>10.15</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>56600</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Corporation</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Additionally, the reporting person owns 371,175 Securities directly; 78,000 indirectly, held by the Richard T. Christoph Living Trust, of which the reporting person is trustee; 43,700 shares indirectly, held by the Carla C. McMahon Trust, of which the reporting person is Trustee; and 3,850 shares indirectly, held by the spouse of the reporting person.  The amounts described in this footnote also reflect a transfer in 2003 (not required to be reported) from the reporting person directly to the Richard T. Christoph Living Trust.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Patrick J. Kinney, Jr. as attorney-in-fact for Richard T. Christoph</signatureName>
        <signatureDate>2004-02-13</signatureDate>
    </ownerSignature>
</ownershipDocument>

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