Composition for treating acne vulgaris

Claim 1

A topical, therapeutic composition comprising from about 3% to about 7% salicylic acid and from 3% to about 20% benzoyl peroxide in a pharmaceutically acceptable vehicle comprising an aqueous gel containing an amount sufficient to produce a stable gel of a gelling and thickening agent selected from the group consisting of a mixture of about 1 to about 3% by weight magnesium aluminum silicate with about 1 to about 3% by weight of methyl cellulose, wherein the combined amount of the magnesium aluminum silicate and the methyl cellulose does not exceed about 5% by weight; about 7 to about 9% by weight of magnesium aluminum silicate; about 2 to about 5% by weight methyl cellulose; about 1 to about 3% by weight pectin; about 2 to about 4% by weight xanthan gum; about 4 to about 6% by weight polyethylene oxide having an average molecular weight of about 400,000; about 5 to about 7% by weight polyethylene oxide having an average molecular weight of about 300,000; about 3 to about 5% by weight polyethylene oxide having an average molecular weight of about 600,000; about 1 to about 3% by weight polyacrylamide; and about 2 to about 4% by weight of a 1:1 mixture of hectorite and hydroxyethylcellulose.