PROBLEM TO BE SOLVED: To provide a composition for enhancing transdermal absorption that shows a superior drug transdermal absorption-enhancing effect, and a patch preparation that has a superior drug transdermal absorption property.SOLUTION: The present invention relates to a composition for enhancing transdermal absorption of a drug, containing a polyvalent alcohol having 3 to 8 carbon atoms, an organic acid having 2 to 20 carbon atoms, and a higher alcohol having 12 to 20 carbon atoms, and a patch preparation containing a drug-containing adhesive layer 2 containing the composition and a drug on one surface of a support 5.COPYRIGHT: (C)2014,JPO&INPIT【課題】薬物に対して、優れた経皮吸収促進効果を示す経皮吸収促進用組成物、および、薬物の経皮吸収性に優れた貼付製剤を提供すること。【解決手段】炭素数3~8の多価アルコールと、炭素数2~20の有機酸と、炭素数12~20の高級アルコールとを含む、薬物の経皮吸収促進用組成物。該薬物の経皮吸収促進用組成物と薬物とを含む薬物含有粘着剤層2を、支持体5の片面に有する、貼付製剤。【選択図】図1