Disclosed is a transdermally absorbed prepration that can stably administer an anti-dementia drug over a long period of time on the order of one week. More specifically, the transdermally absorbed preparation of the anti-dementia drug comprises a drug-containing layer comprising the anti-dementia therapeutic drug, a macromolecular compound that has an amino group, a polyvalent alcohol fatty acid ester, a polyvalent alcohol, a polyvalent carboxylate ester, and a styrenic macromolecular compound.
