-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 B11DFk+0nLgMT8cp0qnAHslmK7r8hNu51ZvPisXnRJK6vMKD5Kqa+asALDjXOvFC
 AlwYf6/NLEXBFnCLV3FJ3w==

<SEC-DOCUMENT>0001041887-04-000001.txt : 20040317
<SEC-HEADER>0001041887-04-000001.hdr.sgml : 20040317
<ACCEPTANCE-DATETIME>20040317150501
ACCESSION NUMBER:		0001041887-04-000001
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20040315
FILED AS OF DATE:		20040317

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:			WEINERT FRED J
		CENTRAL INDEX KEY:			0001041887

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-13738
		FILM NUMBER:		04675298

	BUSINESS ADDRESS:	
		STREET 1:		330 E MAIN ST
		CITY:			BARRINGTON
		STATE:			IL
		ZIP:			60610
		BUSINESS PHONE:		7088429115

	MAIL ADDRESS:	
		STREET 1:		330 E MAIN ST
		CITY:			BARRINGTON
		STATE:			IL
		ZIP:			60620
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0201</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2004-03-15</periodOfReport>

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

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001041887</rptOwnerCik>
            <rptOwnerName>WEINERT FRED J</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O PSYCHEMEDICS CORPORATION</rptOwnerStreet1>
            <rptOwnerStreet2>1280 MASSACHUSTEES AVENUE</rptOwnerStreet2>
            <rptOwnerCity>CAMBRIDGE</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02138</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Option (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>11.67</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2004-03-15</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>5150</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2005-03-15</value>
            </exerciseDate>
            <expirationDate>
                <value>2014-03-15</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>5150</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>5150</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes></footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Patrick J. Kinney, Jr. as Attorney-in-Fact for Fred J. Weinert</signatureName>
        <signatureDate>2004-03-17</signatureDate>
    </ownerSignature>
</ownershipDocument>

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