Patent ID: 8287900

Claim:
A medicated patch comprising a percutaneously absorbable preparation layer, the percutaneously absorbable preparation layer comprising: 5 methyl-1-phenyl-2-(1H)-pyridone or a pharmaceutically acceptable salt thereof as an active component, a dissolving agent, and an aqueous base material, wherein the aqueous base material comprises a water-soluble polymer in an amount of 1 to 20 mass %, a cross-linking agent in an amount of 0.01 to 20 mass %, the cross-linking agent being a salt which generates a bivalent or trivalent metal ion, a polyvalent alcohol in an amount of 10 to 80 mass % and water in an amount of 5 to 80 mass % relative to a total amount of the percutaneously absorbable preparation layer, and the active component is contained in an amount of 0.1 to 30 mass % relative to the total amount of the percutaneously absorbable preparation layer.