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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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<SEC-DOCUMENT>0001140361-09-007169.txt : 20090316
<SEC-HEADER>0001140361-09-007169.hdr.sgml : 20090316
<ACCEPTANCE-DATETIME>20090316165516
ACCESSION NUMBER:		0001140361-09-007169
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20090311
FILED AS OF DATE:		20090316
DATE AS OF CHANGE:		20090316

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Hamilton Brian L
		CENTRAL INDEX KEY:			0001458692

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-16929
		FILM NUMBER:		09685084

	MAIL ADDRESS:	
		STREET 1:		850 BEAR TAVERN ROAD
		STREET 2:		SUITE 201
		CITY:			EWING
		STATE:			NJ
		ZIP:			08628

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			DOR BIOPHARMA INC
		CENTRAL INDEX KEY:			0000812796
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				411505029
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		850 BEAR TAVERN ROAD
		STREET 2:		SUITE 201
		CITY:			EWING
		STATE:			NJ
		ZIP:			08628
		BUSINESS PHONE:		609-538-8200

	MAIL ADDRESS:	
		STREET 1:		850 BEAR TAVERN ROAD
		STREET 2:		SUITE 201
		CITY:			EWING
		STATE:			NJ
		ZIP:			08628

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ENDOREX CORP
		DATE OF NAME CHANGE:	19960916

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	IMMUNOTHERAPEUTICS INC
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc1.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2009-03-11</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000812796</issuerCik>
        <issuerName>DOR BIOPHARMA INC</issuerName>
        <issuerTradingSymbol>DORB</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001458692</rptOwnerCik>
            <rptOwnerName>Hamilton Brian L</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>850 BEAR TAVERN ROAD</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 201</rptOwnerStreet2>
            <rptOwnerCity>EWING</rptOwnerCity>
            <rptOwnerState>NJ</rptOwnerState>
            <rptOwnerZipCode>08628</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Medical Officer</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable></nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Options (right to buy)</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>.11</value>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2009-03-11</value>
                <footnoteId id="F1"/>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>1000000</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2009-03-11</value>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2019-03-10</value>
                <footnoteId id="F1"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                    <footnoteId id="F1"/>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>1000000</value>
                    <footnoteId id="F1"/>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1000000</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Granted stock options to purchase 1,000,000 shares of the Company?s common stock, of which 250,000 shares vest immediately and the remainder of the options will vest on each three (3) month anniversary of the grant date at a rate of 62,500 options per quarter. The exercise price of the options equals $0.11 per share, the market price of the Company?s common stock as of the close of business on March 11, 2009.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Brian L. Hamilton</signatureName>
        <signatureDate>2009-03-16</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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