A patch preparation includes a support and a pressure-sensitive adhesive layer formed on one surface of the support. The pressure-sensitive adhesive layer includes: (A) a polymer prepared by copolymerizing monomer components including a hydroxyl group-containing monomer and an alkyl (meth)acrylate monomer； (B) a polymer prepared by copolymerizing monomer components including a methyl methacrylate monomer and a butyl methacrylate monomer； and (C) a basic drug, provided that bisoprolol and a salt thereof are excluded.
