superficial therapeutic system for topical administration of acetylsalicylic acid for the treatment of acne disease

摘要

The invention relates to a superficial therapeutic system for the topical treatment of acne, containing the active ingredient acetylsalicylic acid. Said system has a layered structure consisting of a backing layer which is waterproof and substantially impervious to active ingredients, in addition to one or several matrix layers containing active ingredients and a detachable protective layer. The system is characterised in that at least part of the active ingredient acetylsalicylic acid is present in one of the matrix layers in suspension.