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Polymeric diffusion matrix

  • US 4,470,962 A
  • Filed: 04/28/1981
  • Issued: 09/11/1984
  • Est. Priority Date: 08/14/1979
  • Status: Expired due to Fees
First Claim
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1. A transdermal drug delivery vehicle, which contains α

  • -[1-(methylamino)ethyl]benzene-methanol in the form of a shape-retaining matrix for direct application to the skin of a patient in need of the α

    -[1-(methylamino)ethyl]benzene-methanol to be delivered, said matrix comprising from about 2 to about 60% glycerol, from about 2 to about 15% polyvinylalcohol molecular weight of from about 100,000 to about 150,000, from about 2 to about 10% polyvinylpyrrolidone molecular weight of from about 20,000 to about 60,000 and the balance water, cast or molded from hot solution thereof.

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