| abstract |
The present invention provides a patch having a good skin-permeability and therapeutic effect with drugs with low irritation. An external patch in which an adhesive layer containing an adhesive substrate and a drug is laminated on a support, wherein the adhesive substrate contains 5-50% by weight of a synthetic rubber polymer, 10-60% by weight of an adhesive resin, and 25-60% by weight of liquid paraffin. The drug is etophenamate. According to the present invention, a patch having excellent skin-permeability and therapeutic effect by the drug with low irritation can be obtained. |