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Controlled release bases for pharmaceuticals

  • US 4,970,075 A
  • Filed: 04/05/1989
  • Issued: 11/13/1990
  • Est. Priority Date: 07/18/1986
  • Status: Expired due to Term
First Claim
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1. Extended action controlled release pharmaceutical composition for oral administration, comprising a pharmaceutically effective amount of a pharmaceutically active agent distributed in a controlled release core or matrix comprising a higher aliphatic alcohol of 10-18 carbon atoms and a pharmaceutically acceptable acrylic resin, said acrylic resin being present in an amount of about 10-60% by weight of the weight of said higher aliphatic alcohol plus said acrylic resin.

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