Hydrogel-driven drug dosage form

Details Hydrogel-driven drug dosage form Hydrogel-driven drug dosage form

A - Human Necessities

61

K

A61K 9/22 (2006.01) A61K 9/00 (2006.01) A61K 9/20 (2006.01)

Patent

CA 2418907

A controlled release dosage form has a coated core with the core comprising a drug-containing composition and a water-swellable composition, each occupying separate regions within the core. The coating around the core is water- permeable, water-insoluble and has at least one delivery port therethrough. A variety of geometric arrangements are disclosed.

L'invention concerne une forme posologique à libération contrôlée, possédant un noyau enrobé comprenant une composition renfermant un médicament et une composition gonflable à l'eau, chaque composition occupant des régions séparées dudit noyau. L'enrobage du noyau est perméable à l'eau, insoluble dans l'eau, et possède au moins un orifice de distribution. L'invention concerne également plusieurs arrangements géométriques de cette forme posologique.

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