Method for reducing skin irritation associated with drug/penetration enhancer compositions
AssigneeTheratech, Inc.
InventorsDinesh C. Patel, Charles D. Ebert
Life of this patent
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Abstract
A composition and method for reducing the skin irritation properties of a transdermal drug/enhancer composition which comprises incorporating into said composition, either prior to or at the time of application the skin, an effective amount of glycerin. When incorporated into the drug/enhancer composition prior to application to the skin the glycerin content will be between about 0.1 and 70 wt. %, preferably between about 1.0 and 50 wt. % and most preferably between about 5.0 and 20 wt. % of the composition.
Claims21
A drug-enhancer composition for transdermally administering a drug having reduced skin irritation properties consisting essentially of (a) a percutaneously absorbable drug, (b) a mild to moderately irritating enhancer composition consisting of a solvent selected from the group consisting of a C.sub.2 or C.sub.3 alcohol, a C.sub.3 or C.sub.4 diol, DMSO, DMF, DMA, 1-n-dodecyl-cyclazacycloheptan-2-one, N-methyl-pyrrolidone and N-(2-hydroxyethyl)pyrrolidone and mixtures thereof and an effective enhancing amount of a cell envelope disordering compound and (c) an effective amount of glycerin to reduce the irritation of said drug-enhancer composition.
A method for reducing skin irritation caused by drug-enhancer compositions having skin irritation properties comprising applying to a predetermined area of skin an effective amount of a drug/enhancer composition consisting essentially of a percutaneously absorbable drug, (b) a mild to moderately irritating enhancer composition consisting of a solvent selected from the group consisting of a C.sub.2 or C.sub.3 alcohol, a C.sub.3 or C.sub.4 diol, DMSO, DMF, DMA, 1-n-dodecyl-cyclazacycloheptan-2-one, N-methyl-pyrrolidone and N-(2-hydroxyethyl)pyrrolidone and mixtures thereof and an effective enhancing amount of a cell envelope disordering compound and (c) an effective amount of glycerin to reduce the irritation of said drug-enhancer composition.
Dependencies are inferred from the claim text.