<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2004-08-12</periodOfReport>

    <issuer>
        <issuerCik>0000786947</issuerCik>
        <issuerName>HALSEY DRUG CO INC/NEW</issuerName>
        <issuerTradingSymbol>HDGC.OB</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001260882</rptOwnerCik>
            <rptOwnerName>REDDICK ANDREW D</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O ACURA PHARMACEUTICALS, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>616 N. NORTH COURT, SUITE 120</rptOwnerStreet2>
            <rptOwnerCity>PALATINE</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60067</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>PRESIDENT and CEO</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable></nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Employee Stock Options</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>.13</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2004-08-12</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>0</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <value>2014-08-12</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>8750000</value>
                    <footnoteId id="F1"/>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>8750000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Option to purchase 8,750,000 shares of the Issuer's common stock, $.01 par value per share. In May 2004, the Issuer ammended the Reporting Person's Executive Employment Agreement, among other things, to adjust the Issuer's commitment to issue a stock option to the Reporting Person from 5,500,000 shares to 8,750,000 shares. The grant of such option was contingent upon receipt of shareholder approval to amend the Issuer's stock option plan under which the stock option would be issued. Shareholder approval of the amended stock option plan was obtained August 12, 2004.</footnote>
        <footnote id="F2">Option vests and is exercisable as follows:  (i)  3,000,000 on the date of Grant; and (ii)  250,000 monthly thereafter commencing on August 31, 2004 until fully vested.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Andrew D. Reddick</signatureName>
        <signatureDate>2004-08-12</signatureDate>
    </ownerSignature>
</ownershipDocument>

