PROBLEM TO BE SOLVED: To provide a percutaneous administration preparation that is excellent in percutaneous absorption.SOLUTION: This invention provides a reservoir-type percutaneous administration preparation having a medicine storage layer comprising a medicine in a porous sheet, the percutaneous administration preparation characterized in that the porous sheet is a laminate of a porous sheet comprising cellulose and a porous sheet comprising polyester.COPYRIGHT: (C)2015,JPO&INPIT【課題】経皮吸収性に優れた経皮投与製剤の提供。【解決手段】多孔性シート中に薬物を含有する薬物貯留層を有するリザーバー型経皮投与製剤において、多孔性シートがセルロース類からなる多孔性シートとポリエステルからなる多孔性シートの積層体であることを特徴とする経皮投与製剤。【選択図】なし