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Device for controlled release drug delivery

  • US 4,764,382 A
  • Filed: 04/09/1986
  • Issued: 08/16/1988
  • Est. Priority Date: 11/15/1984
  • Status: Expired due to Fees
First Claim
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1. A device for the controlled release and delivery of a pharmacologically active agent, comprising a gelled vinyl plastisol layer and a pharmacologically active agent uniformly dispersed in the layer in a pharmacologically effective amount,said vinyl layer comprising an emulsion polymerized polyvinyl chloride resin, a primary plasticizer for the polyvinyl chloride resin, and an organic, nonvolatile gel forming additive in an amount sufficient to form a gel.

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