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EP0109320A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Controlled release theophyllin tablets and process for producing them

Assignee: Pierre Fabre Medicament SA
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Filing: 1983-10-25
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Granted: —
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Expires: 2003-10-25
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Abstract

Abstract Translated from French La présente invention concerne de nouveaux comprimés de théophylline, type matrice hydrophile, à libération contrôlée selon un processus d'ordre zéro et leur procédé de fabrication. Les comprimés selon l'invention se caractérisent en ce qu'il contient: une quantité thérapeutique efficace de théophylline; d'environ 18% à environ 35% en poids par rapport au poids total du comprimé d'au moins une hydroxypropylméthylcellulose à titre de polymère hydrophile; d'environ 7,5% à environ 22,5% en poids par rapport au poids total du comprimé d'un agent liant hydrophile favorisant l'hydratation du polymère, et d'environ 0,5% à environ 1% en poids par rapport au poids total du comprimé d'un agent lubrifiant interne hydrophobe. The present invention relates to new theophylline tablets, hydrophilic matrix type, controlled release according to a zero order process and their manufacturing process. The tablets according to the invention are characterized in that it contains: a therapeutically effective amount of theophylline; from about 18% to about 35% by weight relative to the total weight of the tablet of at least one hydroxypropylmethylcellulose as hydrophilic polymer; from about 7.5% to about 22.5% by weight relative to the total weight of the tablet of a hydrophilic binder promoting hydration of the polymer, and from about 0.5% to about 1% by weight per relative to the total weight of the tablet of an internal hydrophobic lubricant.

Inventors

  • 👤 Joel Bougaret
  • 👤 Daniel Darbeau

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-04 20:16
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/20; A61K9/2004; A61K9/2022; A61K9/205; A61K9/2054; A61K31/00; A61K31/33; A61K31/395; A61K31/495; A61K31/505; A61K31/519; A61K31/52

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

FR2070139A1 Cited
FR2120101A1 Cited
AT347039B Cited
US4261970A Cited
US4259314A Cited

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