The present invention provides to patches having excellent skin-permeability and therapeutic effect by the drug with lower irritation. In an external patch in which an adhesive layer containing an adhesive base and a drug are laminated with a backing, the external patch wherein the adhesive base contains 5-50 % by weight of synthetic rubber polymer, 10-60 % by weight of adhesive resin and 25-60 % by weight of liquid paraffin, and the drug is etofenamate. According to the present invention, there is obtainable the patches having excellent skin-permeability and therapeutic effect by the drug with lower irritation.