PROBLEM TO BE SOLVED: To provide a new preventive and therapeutic agent of psoriasis.SOLUTION: The preventive and therapeutic agent of psoriasis comprises pitavastatin or the salt thereof as an active ingredient.COPYRIGHT: (C)2012,JPO&INPIT【課題】新たな乾癬予防治療剤の提供。【解決手段】ピタバスタチン又はその塩を有効成分とする乾癬予防治療剤。【選択図】なし