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Polyurethane hydrogel drug reservoirs for use in transdermal drug delivery systems, and associated methods of manufacture and use

  • US 5,902,603 A
  • Filed: 09/13/1996
  • Issued: 05/11/1999
  • Est. Priority Date: 09/14/1995
  • Status: Expired due to Term
First Claim
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1. A drug reservoir for use in a transdermal drug delivery system, comprising a layer of a polyurethane hydrogel having a drug formulation comprising at least one permeation enhancer absorbed therein.

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