Hydromorphone and hydrocodone compositions and methods for their synthesis

  • US 6,589,960 B2
  • Filed: 09/27/2002
  • Issued: 07/08/2003
  • Est. Priority Date: 11/09/1999
  • Status: Expired due to Term
First Claim
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1. A composition comprising hydromorphone and:

  • a) from about 0.05% up to about 1.0% dihydromorphine;

    b) up to about 0.1% morphine;

    c) up to about 0.8% 8-hydroxy hydromorphone;

    d) up to about 0.5% bis-hydromorphone; and

    e) up to about 0.2% other impurities.

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