<p>Percutaneous absorption preparations for treating dementia which contain an adhesive composition,characterized in that the adhesive composition contains the active ingredient in a dispersed state,the active ingredient is released at a pharmacologically effective speed and the skin permeation speed thereof is at least 1.2μg/cm<sp>2</sp>/h.Thus,it is possible to provide percutaneous absorption preparations whereby the therapeutic effect can be sustained over a prolonged period of time without elevating the concentration of the active ingredient in the plasma to such a level as causing the expression of side effects in the administration of remedies for dementia.</p>
