-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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<SEC-DOCUMENT>0000950116-05-001318.txt : 20050407
<SEC-HEADER>0000950116-05-001318.hdr.sgml : 20050407
<ACCEPTANCE-DATETIME>20050407181647
ACCESSION NUMBER:		0000950116-05-001318
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20050405
FILED AS OF DATE:		20050407
DATE AS OF CHANGE:		20050407

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			GENEREX BIOTECHNOLOGY CORP
		CENTRAL INDEX KEY:			0001059784
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				820490211
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		33 HARBOUR SQ
		STREET 2:		STE 202
		CITY:			TORONTO ONTARIO CANADA
		STATE:			A1
		ZIP:			M5J 2G2
		BUSINESS PHONE:		4163642551

	MAIL ADDRESS:	
		STREET 1:		33 HARBOUR SQ
		STREET 2:		STE 202
		CITY:			TORONTO ONTARIO CA
		STATE:			A1
		ZIP:			M5J 2G2

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			FLETCHER MARK
		CENTRAL INDEX KEY:			0001229529

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-25169
		FILM NUMBER:		05740114

	BUSINESS ADDRESS:	
		STREET 1:		C/O GENEREX BIOTECHNOLOGY CORP
		STREET 2:		33 HARBOUR SQUARE
		CITY:			TORONTO ONTARIO CANADA
		STATE:			A1
		ZIP:			M5J2G2
		BUSINESS PHONE:		4163642551

	MAIL ADDRESS:	
		STREET 1:		33 HARBOUR SQUARE
		CITY:			TORONTO ONTARIO CANADA
		STATE:			A1
		ZIP:			M5J2G2
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>p405908_ex.xml
<DESCRIPTION>4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2005-04-05</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001059784</issuerCik>
        <issuerName>GENEREX BIOTECHNOLOGY CORP</issuerName>
        <issuerTradingSymbol>GNBT</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001229529</rptOwnerCik>
            <rptOwnerName>FLETCHER MARK</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>33 HARBOUR SQUARE, SUITE 202</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>TORONTO</rptOwnerCity>
            <rptOwnerState>A6</rptOwnerState>
            <rptOwnerZipCode>M5J 2G2</rptOwnerZipCode>
            <rptOwnerStateDescription>ONTARIO, CANADA</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Executive VP and General Couns</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Common Stock Purchase Options</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>.61</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2005-04-05</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>250000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2005-04-05</value>
            </exerciseDate>
            <expirationDate>
                <value>2009-12-12</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>250000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>250000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>Common Stock Purchase Options</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>.001</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2005-04-05</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>470726</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2005-04-05</value>
            </exerciseDate>
            <expirationDate>
                <value>2010-04-04</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>470726</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>470726</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">These options were issued in satisfaction of salary foregone since December 2004 and retroactive salary adjustment to August
2004 and in lieu of cash bonus.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Mark Fletcher</signatureName>
        <signatureDate>2005-04-07</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----