Adhesive skin patch

摘要

The present invention provides an adhesive skin patch that permits excellent and prolonged percutaneous absorption of tulobuterol and that can be stably applied to the skin for a long period of time with less skin irritation. The adhesive skin patch comprises a base material and a medicated layer provided on one surface of the base material. The medicated layer contains 1 to 30% by weight of a resolvent, 40 to 98% by weight of a pressure-sensitive adhesive, and tulobuterol. The resolvent contains an aliphatic alcohol having a branched-chain structure or a double bond in its C8 to C30 carbon chain. The pressure-sensitive adhesive is a copolymer obtained by copolymerizing monomers containing 70% by weight or more of an alkyl(meth)acrylate whose alkyl group has 6 to 20 carbon atoms.