Controlled release formulation of erythromycin derivatives

A - Human Necessities – 61 – K

Patent

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A61K 31/70 (2006.01)

Patent

CA 2524827

The present invention is directed to a controlled release formulation in tablet form comprising a pharmaceutically effective amount of an erythromycin derivative and a lubricating effective amount of a lubricant in the absence of material selected from the group consisting of alginic acid or salts thereof or hydrophilic sustained release polymers in amounts effective to retard the release of the erythromycin derivatives in the pharmaceutical composition. It is also directed to a method for facilitating the release of erythromycin derivative from a pharmaceutical composition comprising a therapeutically effective amount of a lubricating effective amount of a lubricant said method comprising adding to said composition an release promoter in tablet disintegrating effective amounts to facilitate the release of the erythromycin derivative from the tablet.

La présente invention a trait à une formulation à contrôlée sous forme de comprimé comportant une quantité pharmaceutiquement efficace d'un dérivé d'étrythromycine et d'une quantité efficace lubrifiante d'un lubrifiant en l'absence de matériau sélectionné à partir du groupe constitué de l'acide alginique ou de ses sels ou des polymères hydrophiles à libération prolongée en des quantités efficaces pour retarder la libération des dérivés d'érythromycine dans la composition pharmaceutique. L'invention a également trait à un procédé destiné à faciliter la libération de dérivé d'érythromycine à partir d'une composition pharmaceutique comprenant une quantité thérapeutiquement efficace d'une quantité efficace lubrifiante d'un lubrifiant, ledit procédé comprenant l'ajout à ladite composition d'un promoteur de libération dans des quantités efficaces pour la désintégration du comprimé afin de faciliter la libération du dérivé d'érythromycine à partir du comprimé.

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