A patch provided with a support layer and an adhesive layer, wherein: the adhesive layer contains at least one drug selected from the group consisting of butorphanol and pharmaceutically acceptable salts thereof, and a silicone adhesive; and the mass per unit area of the adhesive layer is 30-90 g/m2.本發明之貼附劑係具備支持體層及黏著劑層者,且 上述黏著劑層含有選自由美妥芬諾及其藥學上容許之鹽所組成之群中之至少一種藥物及矽酮系黏著基劑,並且 上述黏著劑層之每單位面積之質量為30~90 g/m2。