A transdermal drug delivery system for anti-inflammatory...

A - Human Necessities – 61 – K

Patent

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Details

A61K 31/195 (2006.01) A61K 9/70 (2006.01) A61K 31/196 (2006.01)

Patent

CA 2304784

The invention herein relates to a transdermal drug delivery system for anti- inflammatory analgesic agent comprising diclofenac diethylammonium salt, wherein a backing film (1), a matrix layer (2) containing active ingredients, a release liner (3) which is removed before application onto the skin are laminated therein. More particularly, the invention herein relates to a transdermal drug delivery system for anti-inflammatory analgesic agent comprising diclofenac diethylammonium salt, wherein the transdermal penetration and adhesion of the patch to the body are enhanced by means of a matrix layer which comprises a diclofenac diethylammonium salt as active ingredient in addition to acrylic polymer as adhesive constituent, non-ionic surfacant as absorption enhancer, terpene and dissolution assistant, and the volatile and non-volatile constituents of the composition are separately applied therein for significantly reducing the manufacturing time thereof.

L'invention se rapporte à un système d'administration transdermique de médicament destiné à un agent analgésique et anti-inflammatoire comportant du sel de diclofénac-diéthylammonium, ledit système étant un système stratifié composé d'un film support (1), d'une couche matrice (2) contenant des principes actifs, d'une garniture anti-adhérente (3) que l'on retire avant d'appliquer le système transdermique sur la peau. L'invention se rapporte plus particulièrement à un système d'administration transdermique de médicament destiné à un agent analgésique et anti-inflammatoire comportant du sel de diclofénac-diéthylammonium dans lequel la pénétration transdermique et l'adhésion de la bande adhésive sur le corps sont améliorées par une couche matrice qui comporte en tant que principe actif un sel de diclofénac-diéthylammonium, en plus d'un polymère acrylique utilisé en tant que constituant adhésif, d'un tensioactif non ionique utilisé en tant que renforçateur d'absorption, de terpène et d'un auxiliaire de dilution, les constituants volatils et non volatils de la composition étant introduits séparément dans ce système de façon à réduire de manière significative la durée de fabrication.

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