Transdermal therapeutical system with a reduced tendency of...

Details Transdermal therapeutical system with a reduced tendency of... Transdermal therapeutical system with a reduced tendency of...

A - Human Necessities

61

K

A61K 9/70 (2006.01)

Patent

CA 2410336

The invention relates to a transdermal therapeutical system in the form of a plaster for the controlled release of active substances to the human or animal skin. The inventive system comprises a backing layer, a reservoir linked therewith that contains the active substance, and a releasable protective layer. The main components of the reservoir containing the active substance include at least one film forming agent and at least one polymer that inhibits or suppresses the crystallization of the active substance(s).

L'invention concerne un système thérapeutique transdermique sous forme de patch, pour l'administration contrôlée de principes actifs à travers la peau d'un homme ou d'un animal. Ce système comporte une couche dorsale, un réservoir, relié à ladite couche dorsale et contenant le ou les principes actifs, et une couche de protection pouvant être enlevée et remise en place. Il se caractérise en ce que le réservoir contenant le ou les principes actifs contient, comme composant principal, au moins un agent filmogène et au moins un polymère empêchant ou réduisant la cristallisation du ou des principes actifs.

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