<?xml version="1.0"?>
<!-- - EDGAR Ease Plus 1.0                                   07/25/03  TT    -->
<ownershipDocument>
    <schemaVersion>X0201</schemaVersion>

    <documentType>4</documentType>
   <periodOfReport>2003-07-01</periodOfReport>
   <notSubjectToSection16>0</notSubjectToSection16>
    <issuer>
        <issuerCik>0000725058</issuerCik>
        <issuerName>CYTOGEN CORP</issuerName>
        <issuerTradingSymbol>CYTO</issuerTradingSymbol>
   </issuer>
   <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001190750</rptOwnerCik>
            <rptOwnerName>BLOOM ALLEN</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O CYTOGEN CORPORATION</rptOwnerStreet1>
            <rptOwnerStreet2>650 COLLEGE ROAD EAST, SUITE 3100</rptOwnerStreet2>
            <rptOwnerCity>PRINCETON</rptOwnerCity>
            <rptOwnerState>NJ</rptOwnerState>
            <rptOwnerZipCode>08540</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
         <isDirector>1</isDirector>
         <isOfficer>0</isOfficer>
         <isTenPercentOwner>0</isTenPercentOwner>
         <isOther>0</isOther>
      </reportingOwnerRelationship>
   </reportingOwner>
 <nonDerivativeTable>
   <nonDerivativeTransaction>
      <securityTitle>
         <value>Common Stock</value>
            <footnoteId id="F1"/>
      </securityTitle>
      <transactionDate>
         <value>2003-07-01</value>
      </transactionDate>
      <deemedExecutionDate>
         <value>2003-07-01</value>
      </deemedExecutionDate>
      <transactionCoding>
         <transactionFormType>4</transactionFormType>
         <transactionCode>A</transactionCode>
         <equitySwapInvolved>0</equitySwapInvolved>
      </transactionCoding>
      <transactionAmounts>
         <transactionShares>
           <value>72</value>
         </transactionShares>
         <transactionPricePerShare>
           <value>9.055</value>
         </transactionPricePerShare>
         <transactionAcquiredDisposedCode>
           <value>A</value>
         </transactionAcquiredDisposedCode>
      </transactionAmounts>
      <postTransactionAmounts>
         <sharesOwnedFollowingTransaction>
           <value>72</value>
         </sharesOwnedFollowingTransaction>
      </postTransactionAmounts>
      <ownershipNature>
         <directOrIndirectOwnership>
            <value>D</value>
         </directOrIndirectOwnership>
      </ownershipNature>
   </nonDerivativeTransaction>
   <nonDerivativeTransaction>
      <securityTitle>
         <value>Common Stock</value>
            <footnoteId id="F1"/>
      </securityTitle>
      <transactionDate>
         <value>2003-10-01</value>
      </transactionDate>
      <deemedExecutionDate>
         <value>2003-10-01</value>
      </deemedExecutionDate>
      <transactionCoding>
         <transactionFormType>4</transactionFormType>
         <transactionCode>A</transactionCode>
         <equitySwapInvolved>0</equitySwapInvolved>
      </transactionCoding>
      <transactionAmounts>
         <transactionShares>
           <value>261</value>
         </transactionShares>
         <transactionPricePerShare>
           <value>11.48</value>
         </transactionPricePerShare>
         <transactionAcquiredDisposedCode>
           <value>A</value>
         </transactionAcquiredDisposedCode>
      </transactionAmounts>
      <postTransactionAmounts>
         <sharesOwnedFollowingTransaction>
           <value>261</value>
         </sharesOwnedFollowingTransaction>
      </postTransactionAmounts>
      <ownershipNature>
         <directOrIndirectOwnership>
            <value>D</value>
         </directOrIndirectOwnership>
      </ownershipNature>
   </nonDerivativeTransaction>
   <nonDerivativeTransaction>
      <securityTitle>
         <value>Common Stock</value>
            <footnoteId id="F1"/>
      </securityTitle>
      <transactionDate>
         <value>2003-10-21</value>
      </transactionDate>
      <deemedExecutionDate>
         <value>2003-10-21</value>
      </deemedExecutionDate>
      <transactionCoding>
         <transactionFormType>4</transactionFormType>
         <transactionCode>A</transactionCode>
         <equitySwapInvolved>0</equitySwapInvolved>
      </transactionCoding>
      <transactionAmounts>
         <transactionShares>
           <value>279</value>
         </transactionShares>
         <transactionPricePerShare>
           <value>10.725</value>
         </transactionPricePerShare>
         <transactionAcquiredDisposedCode>
           <value>A</value>
         </transactionAcquiredDisposedCode>
      </transactionAmounts>
      <postTransactionAmounts>
         <sharesOwnedFollowingTransaction>
           <value>279</value>
         </sharesOwnedFollowingTransaction>
      </postTransactionAmounts>
      <ownershipNature>
         <directOrIndirectOwnership>
            <value>D</value>
         </directOrIndirectOwnership>
      </ownershipNature>
   </nonDerivativeTransaction>
 </nonDerivativeTable>
   <footnotes>
      <footnote id="F1"> Such shares of common stock were issued to Dr. Bloom as compensation for services rendered as a director of the Company, pursuant to the terms of the Company's 1999 Non-Employee Director Plan.</footnote>
   </footnotes>
   <ownerSignature>
      <signatureName>/s/ Allen Bloom</signatureName>
      <signatureDate>2003-12-01</signatureDate>
   </ownerSignature>
</ownershipDocument>
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X0201
4
2003-07-01
0
0000725058
CYTOGEN CORP
CYTO
0001190750
BLOOM ALLEN
C/O CYTOGEN CORPORATION
650 COLLEGE ROAD EAST, SUITE 3100
PRINCETON
NJ
08540
1
0
0
0
Common Stock
2003-07-01
2003-07-01
4
A
0
72
9.055
A
72
D
Common Stock
2003-10-01
2003-10-01
4
A
0
261
11.48
A
261
D
Common Stock
2003-10-21
2003-10-21
4
A
0
279
10.725
A
279
D
Such shares of common stock were issued to Dr. Bloom as compensation for services rendered as a director of the Company, pursuant to the terms of the Company's 1999 Non-Employee Director Plan.
/s/ Allen Bloom
2003-12-01