Transdermal therapeutic system with acetylsalicylic acid as...

Details Transdermal therapeutic system with acetylsalicylic acid as... Transdermal therapeutic system with acetylsalicylic acid as...

A - Human Necessities

61

K

A61K 31/60 (2006.01) A61K 9/70 (2006.01)

Patent

CA 2172401

Transdermal therapeutic system comprising the active substance acetylsalicylic acid, having a layered structure consisting of a backing layer which is substantially impermeable to active substances and moisture and one or several active substance-containing matrix layers, which is characterized in that at least one of said matrix layers comprises acetylsalicylic acid in mainly crystalline form.

Un système thérapeutique transdermique, qui contient comme principe actif l'acide acétylsalicylique, a une structure stratifiée constituée d'une couche de fond sensiblement imperméable au principe actif et à l'humidité, ainsi que d'une ou plusieurs couches matricielles qui contiennent le principe actif. Le système thérapeutique transdermique se caractérise en ce qu'au moins une des couches matricielles contient l'acide acétylsalicylique surtout sous forme cristalline.

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