Anti-misuse microparticulate oral pharmaceutical form

A - Human Necessities – 61 – K

Patent

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Details

A61K 31/785 (2006.01) A61K 9/58 (2006.01) A61K 31/343 (2006.01) A61K 31/745 (2006.01) A61P 25/04 (2006.01)

Patent

CA 2627058

The present invention relates to solid microparticulate oral pharmaceutical forms which have a composition and a structure that prevents the misuse of the active pharmaceutical ingredient (API) contained therein. The aim of the present invention is to prevent the improper use of solid oral drugs for any use other than the therapeutic use(s) officially approved by the appropriate public health authorities. In other words, it is a question of preventing the voluntary or involuntary misuse of solid oral drugs. The invention relates to a solid oral pharmaceutical form, characterized in that it comprises anti-misuse means, in that at least part of the API that it contains is contained in coated microparticles for modified API release, and in that the coated API microparticles comprise a coating layer (Ra), which ensures modified release of the API and which, simultaneously, confers resistance to crushing on the coated API microparticles, so as to prevent misuse.

Le domaine de la présente invention est celui des formes pharmaceutiques orales microparticulaires solides dont la composition et la structure permettent d'éviter le mésusage du principe actif pharmaceutique (PA) qu'elles contiennent. Le but visé par la présente invention est de prévenir le détournement des médicaments solides oraux, pour tout autre usage que l'usage ou les usages thérapeutiques officiellement approuvés par les autorités de santé publique compétentes. En d'autres termes, il s'agit d'éviter le mésusage volontaire ou involontaire des médicaments solides oraux. L'invent ion concerne une forme pharmaceutique orale et solide, caractérisée en ce qu'elle comporte des moyens anti-mésusage, en ce qu'au moins une partie du PA qu'elle comprend est contenu dans des microparticules enrobées, à libération modifiée de PA, et en ce que les microparticules de PA enrobées comportent une couche de revêtement (Ra), qui assure la libération modifiée du PA et qui, simultanément, confère une résistance au broyage aux microparticules de PA enrobées, pour éviter le mésusage.

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