<p>A pasting agent having a support and, carried thereon, an pressure-sensitive adhesive agent layer containing an pressure-sensitive adhesive base agent and oxybutynin and/or its pharmaceutically acceptable salt, wherein the pressure-sensitive adhesive base agent comprises an acrylic polymer having substantially no carboxyl group or substantially no hydroxyl group and an elastic polymer in a weight ratio of the content of the acrylic polymer and that of the elastic polymer of 1 : 4 to 1 : 19.</p>
