A transdermal patch provided with a backing and a pressure-sensitive adhesive layer, wherein said pressure-sensitive adhesive layer includes at least one component selected from the group consisting of tolterodine acetate and salts thereof.本發明之貼附劑係包含支持體與黏著劑層者,且於上述黏著劑層中含有選自由乙酸托特羅定及其鹽所組成之群中之至少1種。