MATRIX SYSTEM FOR THE TRANSDERMAL DELIVERY OF IBUPROFEN, AND METHOD FOR PREPARING SAME

摘要

The invention relates to a self-adhesive transdermal matrix system for the transdermal delivery of ibuprofen, in which matrix system, which comprises acarrier and a self-adhesive matrix, said matrix includes: (a) 55 to 75 parts by weight of an adhesive acrylate copolymer with a glass transition temperature of between -70 and -10.degree.C, (b) 5 to 15 parts by weight of a cationic acrylate copolymer with a glass transition temperature of between 20 and 80.degree.C, (c) 5 to 15 parts by weight of ibuprofen in the form of the free acid, and (d) 10 to 25 parts by weight of diethyl phthalate. It further relates to a method of preparing such a matrix system.