A TRANSDERMAL PATCH

摘要

A percutaneous absorption type plaster (1) having a support (2) and an adhesive layer (3) laminated the support (2), wherein the adhesive layer (3) contains a rosin type resin and a petroleum resin in such amounts that the rosin type resin and the petroleum resin are compounded in a total amount of 15 mass % to 50 mass %, and the compounding amount in mass of the petroleum resin is 1/3 to four times that of the rosin type resin.