Anionic hydrogel matrices with ph dependent modified release...

Details Anionic hydrogel matrices with ph dependent modified release... Anionic hydrogel matrices with ph dependent modified release...

A - Human Necessities

61

K

A61K 9/16 (2006.01) A61K 9/70 (2006.01) A61K 31/205 (2006.01) A61K 47/34 (2006.01)

Patent

CA 2551797

Compositions with pH-dependent modified release are described, consisting of hydrogel matrices containing one or more active ingredients, in which said matrices are suitable for releasing said active ingredients in a prolonged manner in given sites of the body.

Cette invention concerne des compositions à libération modifiée dépendant du pH, lesquelles compositions renferment des matrices d'hydrogel contenant un ou plusieurs ingrédients actifs, lesquelles matrices peuvent libérer ces ingrédients actifs de façon prolongée au niveau de sites prédéterminés du corps.

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