Controlled delivery patch of active ingredient

A - Human Necessities – 61 – F

Patent

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Details

A61F 13/00 (2006.01) A61K 8/02 (2006.01) A61K 8/35 (2006.01) A61K 8/368 (2006.01) A61K 8/44 (2006.01) A61K 8/67 (2006.01) A61K 8/97 (2006.01) A61K 9/70 (2006.01) A61L 15/44 (2006.01) A61Q 9/04 (2006.01) A61Q 19/00 (2006.01) A61Q 19/04 (2006.01) A61Q 19/08 (2006.01)

Patent

CA 2477329

The present invention relates to a patch for controlled topical or transdermal delivery of effective levels of cosmetic, dermatological, and pharmaceutical active ingredients onto the skin, hair follicles, and sebaceous glands, with minimal discomfort and ease of use. The patch can be transparent or clear and comprises a rate-controlling polymeric matrix layer. The polymeric matrix layer comprises water-soluble, bioadhesive, film forming polymers. The cosmetic, dermatological, and pharmaceutical active ingredients are soluble or dispersed in the polymeric matrix. The patch becomes tacky when wetted and adheres onto the skin. The adhesive properties of the patch are sufficient to maintain the patch in place on the skin for the recommended treatment period while allowing the patch to be readily removed without causing skin irritation or leaving adhesive residue on the skin.

L'invention concerne un timbre permettant d'administrer de manière topique ou transdermique contrôlée des niveaux efficaces d'ingrédients actifs cosmétiques, dermatologiques et pharmaceutiques sur la peau, les follicules pileux et les glandes sébacées avec un inconfort minimum et une utilisation facile. Ledit timbre peut être transparent ou clair et comprendre une couche matricielle polymère de contrôle de débit. Ladite couche matricielle polymère comprend des polymères formant un film bioadhésif et soluble dans l'eau. Les ingrédients actifs cosmétiques, dermatologiques et pharmaceutiques sont dissous ou dispersés dans la matrice polymère. Le timbre devient collant quand on le mouille et adhère à la peau. Les propriétés adhésives du timbre sont suffisantes pour maintenir ledit timbre en place sur la peau pendant la durée recommandée du traitement tout en facilitant le retrait dudit timbre sans provoquer d'irritation de la peau et sans laisser de résidu adhésif sur la peau.

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