Composition and method of preparation of release systems for...

Details Composition and method of preparation of release systems for... Composition and method of preparation of release systems for...

A - Human Necessities

61

K

A61K 9/24 (2006.01) A61K 9/20 (2006.01) A61K 9/26 (2006.01) A61K 47/32 (2006.01) A61K 47/34 (2006.01) A61K 47/38 (2006.01)

Patent

CA 2728856

The present invention includes methods and compositions for pharmaceutical compositions that exhibit substantially constant release profile. The composition includes at least two layers with different drug to polymer ratios. The layers can be arranged in any order to achieve desirable pharmaceutical effects.

La présente invention concerne des procédés et des compositions pour des compositions pharmaceutiques qui présentent un profil de libération sensiblement constant. La composition comprend au moins deux couches ayant différents rapports entre le médicament et le polymère. Les couches peuvent être disposées dans nimporte quel ordre pour obtenir les effets pharmaceutiques recherchés.

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