A novel controlled release-niacin formulation

A - Human Necessities – 61 – K

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Details

A61K 47/38 (2006.01) A61K 31/455 (2006.01) A61K 47/32 (2006.01)

Patent

CA 2698670

The present invention relatestoa cont rolled-re lease niacin formulation. In particular, the present invention relates to a controlled-release niacin formulation, comprising niacin; hydroxypropyl methylcellulose; and a carboxyvinyl polymer, in which the carboxyvinyl polymer and hydroxypropyl methylcellulose are contained in a predetermined weight ratio, and to a preparation method thereof. The controlled-release niacin formulation according to the present invention maintains its matrix shape until completion of release, and also release pattern without fluctuation for a desired time period, unlike other formulations. Inparticular, since niacin formulations are used for long-term treatment of hyperlipidemia, the controlled-release niacin formulation of the present invention, capable of maintaining effective blood concentration and high stability for a long period of time, is very useful.

La présente invention concerne une formulation de niacine à libération contrôlée. En particulier, la présente invention concerne une formulation de niacine à libération contrôlée, renfermant de la niacine; de l'hydroxypropylméthylcellulose; et un polymère de carboxyvinyle, dans laquelle le polymère de carboxyvinyle et l'hydroxypropylméthylcellulose sont présents dans un rapport pondéral prédéterminé, ainsi que son procédé de préparation. La formulation de niacine à libération contrôlée selon la présente invention conserve sa forme matricielle jusqu'au terme de la libération, et également un profil de libération sans fluctuation pendant une période de temps souhaitée, à la différence d'autres formulations. En particulier, puisque les formulations de niacine sont utilisées pour un traitement à long terme d'une hyperlipidémie, la formulation de niacine à libération contrôlée de la présente invention, capable de maintenir une concentration sanguine effective et une haute stabilité pendant une longue période de temps, est très utile.

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