This transdermal patch is provided with a support body and an adhesive layer disposed on at least one surface of the support body and containing a drug and an adhesive, wherein the drug contains free bodies of nalfurafine or a salt thereof, and the adhesive is at least one selected from a styrene block copolymer-based adhesive, a polyisobutylene-based adhesive, and a silicone-based adhesive.一種貼附劑，其係具備支撐體、與配置於該支撐體之至少單面上的含有藥物及黏著劑之黏著劑層的貼附劑，其中前述藥物係包含納呋拉啡之自由體或其鹽，前述黏著劑係由苯乙烯嵌段共聚物系黏著劑、聚異丁烯系黏著劑及聚矽氧系黏著劑中選出之至少1種。
