-----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,
 OyBvWIdiLNDQYEgoCSd8fKF0ydW4yBahuiY+obVhbnlAo8Ykn9Z15sEusYN0W405
 GQf/t7PKQB4mGdzj3ZRwsQ==

<SEC-DOCUMENT>0001179110-05-008117.txt : 20050425
<SEC-HEADER>0001179110-05-008117.hdr.sgml : 20050425
<ACCEPTANCE-DATETIME>20050425165220
ACCESSION NUMBER:		0001179110-05-008117
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20050401
FILED AS OF DATE:		20050425
DATE AS OF CHANGE:		20050425

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MANHATTAN PHARMACEUTICALS INC
		CENTRAL INDEX KEY:			0001001316
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				363898269
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		787 SEVENTH AVENUE
		STREET 2:		48TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10019
		BUSINESS PHONE:		2125544555

	MAIL ADDRESS:	
		STREET 1:		787 SEVENTH AVENUE
		STREET 2:		48TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10019

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ATLANTIC TECHNOLOGY VENTURES INC
		DATE OF NAME CHANGE:	20000330

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ATLANTIC PHARMACEUTICALS INC
		DATE OF NAME CHANGE:	19960703

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			ABEL DOUGLAS
		CENTRAL INDEX KEY:			0001324106

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-27282
		FILM NUMBER:		05770569

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		2125829847

	MAIL ADDRESS:	
		STREET 1:		787 SEVENTH AVENUE, 48TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10019
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>FORM 3 -
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2005-04-01</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001001316</issuerCik>
        <issuerName>MANHATTAN PHARMACEUTICALS INC</issuerName>
        <issuerTradingSymbol>MHTT</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001324106</rptOwnerCik>
            <rptOwnerName>ABEL DOUGLAS</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>810 SEVENTH AVENUE, 4TH FLOOR</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10019</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>President and CEO</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes></footnotes>

    <ownerSignature>
        <signatureName>/s/ Douglas Abel</signatureName>
        <signatureDate>2005-04-25</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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