A patch comprising a support layer and an adhesive agent layer, wherein the adhesive agent layer comprises at least one drug selected from the group consisting of emedastine and pharmaceutically acceptable salts thereof , at least one adhesive agent selected from the group consisting of rubber-based adhesive agents and silicone-based adhesive agents, and an alkali metal fumarate as a cohesive force-improving agent for the adhesive agent layer.本發明係關於一種貼附劑,其特徵在於:其係包含支持體層及黏著劑層者,且上述黏著劑層含有選自由依美斯汀及其藥學上所容許之鹽所組成之群中之至少1種藥物、選自由橡膠系黏著劑及聚矽氧系黏著劑所組成之群中之至少1種黏著劑、以及作為上述黏著劑層之凝聚力提高劑之反丁烯二酸鹼金屬鹽。
