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Solid controlled release bioadherent emulsions

  • US 5,055,303 A
  • Filed: 01/31/1989
  • Issued: 10/08/1991
  • Est. Priority Date: 01/31/1989
  • Status: Expired due to Term
First Claim
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1. A bioadherent controlled release drug delivery system which is a solid at room temperature and a cream at body temperature, which comprises:

  • a solid emulsion system containing a continuous lipoidal external phase, an active agent, and a nonlipoidal internal phase that is at least 60% by volume of the emulsion, wherein said internal phase is selected from the group consisting of water, glycerine, and mixtures thereof.

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