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Sustained release pharmaceutical compounds to prevent abuse of controlled substances

  • US 20050080012A1
  • Filed: 08/23/2004
  • Published: 04/14/2005
  • Est. Priority Date: 02/22/2002
  • Status: Active Grant
First Claim
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1. A pharmaceutical composition comprising:

  • a controlled substance; and

    an amino acid or polypeptide covalently bound to said controlled substance in a manner that renders said controlled substance pharmacologically inactive.

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