Pharmaceutical vehicle

A - Human Necessities – 61 – K

Patent

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Details

A61K 47/10 (2006.01) A61K 8/04 (2006.01) A61K 8/368 (2006.01) A61K 9/12 (2006.01) A61P 17/10 (2006.01) A61Q 19/00 (2006.01)

Patent

CA 2444533

This invention relates to vehicles for the percutaneous delivery of at least one pharmaceutically active agent to the epidermis. In particular this invention relates to pharmaceutical compositions directed to the treatment of skin diseases, more particularly those containing salicylic acid. More specifically, a hydroalcoholic vehicle for percutaneous delivery of an active agent to the epidermis, said vehicle comprising lower alcohol, water and wax- surfactant, said wax surfactant being one, or a combination of compounds selected from the group consisting of acyl glutamates, phosphoric acids or salts, acyl isethionates, alkyl ether sulfates, alkyldibenzylmethylammonium salts, heterocyclic ammonium salts, tetraalkylammonium salts, ethoxylated carboxylic acids, ethoxylated glycerides, glycol esters, monoglycerides, polyglyceryl esters, polyhydric alcohol esters and ethers, sorbitan/sorbitol esters and ethoxylated alcohols including lanolin. The invention further relates to methods of treatment of skin diseases, more particularly acne.

L'invention concerne des excipients pour l'administration percutanée d'au moins un agent pharmaceutiquement actif dans l'épiderme. D'une manière plus spécifique, l'invention concerne des compositions pharmaceutiques destinées à au traitement de maladies de la peau, plus particulièrement des compositions contenant de l'acide salicylique. D'une manière plus spécifique, l'invention concerne un excipient hydroalcoolique pour l'administration percutanée d'un agent actif dans l'épiderme, ledit excipient contenant de l'alcool inférieur, de l'eau et un tensioactif à base de cire, lequel tensioactif est un composé ou une combinaison de composés choisis dans le groupe constitué d'acyl glutamates, d'acides ou de sels phosphoriques, d'acyl iséthionates, de sulfates d'alkyl éther, de sels alkyldibenzylméthylammonium, de sels d'ammonium hétérocyclique, de sels de tétraalkylammonium, d'acides carboxyliques éthoxylés, de glycérides éthoxylés, d'esters de glycol, de monoglycérides, d'esters de polyglycéryle, d'esters et d'éthers de polyol, d'esters de sorbitan/sorbitol et d'alcools éthoxylés contenant de la lanoline. L'invention concerne également des méthodes de traitement de maladies de la peau, notamment de l'acné.

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