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Topical drug preparations

DC
  • US 6,120,804 A
  • Filed: 04/08/1999
  • Issued: 09/19/2000
  • Est. Priority Date: 09/29/1995
  • Status: Expired due to Term
First Claim
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1. A method for treating pain in an animal for a sustained period of time, which comprises:

  • topically applying to said animal a gelled composition comprising a therapeutically effective dose of a drug for treating pain;

    said drug being uniformly distributed in a polymer matrix which is suspended in a liquid medium;

    wherein the polymer matrix contains sodium hyaluronate combined with a nonionic polymer.

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