Tannic acid-polymer compositions for controlled release of...

Details Tannic acid-polymer compositions for controlled release of... Tannic acid-polymer compositions for controlled release of...

A - Human Necessities

61

K

A61K 9/20 (2006.01) A61K 9/00 (2006.01) A61K 9/70 (2006.01) A61K 47/26 (2006.01) A61K 47/42 (2006.01) A61K 9/127 (2006.01)

Patent

CA 2296654

The invention is directed to controlled- or sustained-release compositions for the release of pharmaceuticals or other agents. Essential components in the compositions of the present invention include one or more polymers and tannic acid or tannin. Release of the pharmaceutical or other agent is for a predetermined period of time and at a predetermined concentration. The site of action of the agent is topical, local or systemic. Polymers are cellulosic or proteinaceous.

Cette invention se rapporte à des compositions à libération contrôlée ou prolongée servant à l'administration de produits pharmaceutiques ou d'autres agents. Les constituants essentiels de ces compositions sont notamment un ou plusieurs polymères et de l'acide tannique ou du tanin. La libération du produit pharmaceutique ou d'un autre agent se déroule pendant une période prédéterminée et avec une concentration prédéterminée. Le site d'action de l'agent est topique, local ou systémique. Les polymères sont cellulosique ou protéinés.

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