[PROBLEMS] To provide a composition for transdermal or transmucosal administrationwhich is useful as an anti-Alzheimer's disease drug, an anti-Parkinson'sdisease drug, an antidepressant drug, a psychotropic drug, a remedy for drugdependence or the like. [MEANS FOR SOLVING PROBLEMS] A composition for transdermalor transmucosal administration, which contains an effective amount of a racemicbody or optically active isomer of 1-(benzofuran-2-yl)-2-propylaminopentaneor its pharmacologically acceptable salt and a vehicle and can be administeredwithout invading the skin or mucosa, is excellent as an anti-Alzheimer'sdisease drug, an anti-Parkinson's disease drug, an antidepressant drug,a psychotropic drug or a remedy for drug dependence, since the composition enablesthe stable accession of an effective amount of the active ingredient into thebody or brain via the skin or mucosa without causing any trouble such as a loss inthe active ingredient due to the first pass effect in the liver, a pain, an injuryor infection.
