External preparations containing a basic drug

Details External preparations containing a basic drug External preparations containing a basic drug

A - Human Necessities

61

K

A61K 47/32 (2006.01) A61K 9/08 (2006.01) A61K 47/10 (2006.01) A61K 47/34 (2006.01)

Patent

CA 2356310

The present invention is a preparation for external use which contains a basic drug, polyvinyl pyrrolidone and a carboxyvinyl polymer and which has a pH of 4 to 9. The present invention has made it possible to provide a new preparation for external use which enables a drug to show a long-lasting action even at a damaged site of the skin.

L'invention concerne une préparation externe. Cette préparation comprend un médicament de base, du polyvinylpyrrolidone et un polymère de carboxyvinyle et présente un pH compris entre 4 et 9. La préparation selon l'invention assure la libération prolongée du médicament même dans les parties blessées de la peau.

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