The purpose of the present invention is to provide a transdermal absorption-type patch preparation comprising zonisamide, said transdermal absorption-type patch preparation comprising zonisamide or an alkali metal salt thereof as zonisamide or an alkali metal salt thereof, being capable of holding a high concentration of the drug in a dissolved state therein and exerting a sufficient and long-lasting drug effect. A transdermal absorption-type patch preparation that comprises an adhesive layer, said adhesive layer comprising zonisamide or an alkali metal salt thereof, an adhesive agent comprising a (meth)acrylic copolymer having a pyrrolidone group, and a transdermal absorption promoter comprising an N-alkylpyrrolidone.作為唑尼沙胺或其鹼金屬鹽,在於提供含唑尼沙胺經皮吸收型貼附製劑,其為含有唑尼沙胺或其鹼金屬鹽的經皮吸收型貼附製劑,製劑中高濃度的藥物可保持於溶解狀態,發揮充份且持續的藥效。一種經皮吸收型貼附製劑包含,唑尼沙胺或其鹼金屬鹽、包含具有吡咯烷酮基之(甲基)丙烯酸類共聚合體的黏著劑、以及包含N-烷基吡咯烷酮之黏著劑層的經皮吸收型貼附製劑。
