To provide a transdermally absorbable preparation that has sufficient adhesiveness when applied to the skin, has low skin irritation, and can well control the release of lidocaine. A percutaneously absorbable preparation having a pressure-sensitive adhesive layer for holding a drug on a support, wherein the pressure-sensitive adhesive layer contains at least a thermoplastic elastomer and more than 300 parts by weight of liquid paraffin with respect to 100 parts by weight of the elastomer. And the tackifier in the adhesion layer is 10 weight% or less, and contains a lidocaine and an organic acid, The transdermally absorbable preparation characterized by the above-mentioned.皮膚に貼付した際に十分な粘着性を持ちつつ、皮膚刺激性が低く、リドカインの放出性も良好に制御できる経皮吸収製剤を提供すること。支持体上に薬物を保持する粘着層が形成された経皮吸収製剤であって、前記粘着層は少なくとも熱可塑性エラストマー、及び、該エラストマー１００重量部に対して３００重量部を超える流動パラフィンを含み、かつ、粘着層中の粘着付与剤は１０重量％以下であり、リドカインおよび有機酸を含有することを特徴とする経皮吸収製剤。
