Provided is a transdermal absorption preparation that shows superior skin permeability of a drug and that does not easily cause cold flow. A transdermal absorption preparation having a drug-containing layer containing a drug and a polymer, wherein 50 - 100 wt% of the polymer in the drug-containing layer is a polymer having a glass transition temperature of 30℃ - 200℃, and the drug in the drug-containing layer is in an amorphous state.本發明提供一種展示優良藥物皮膚滲透性且不容易造成冷流之經皮吸收製劑。 一種經皮吸收製劑，其具有含有藥物及聚合物之含藥物層，其中該含藥物層中之該聚合物之50至100 wt%為具有30℃至200℃之玻璃轉移溫度之聚合物，且該含藥物層中之該藥物處於非晶態。
