< Topic >The remedy medicine of the urination fault which is based on bladder & urethra cooperation incompletion is offered. Solutions3- (15 - the hydroxy pentadecyl) - 2,4,4 - torimechiru - 2 - cyclohexene - 1 - on or that salt, or the improvement medicine of the disease which is based on the bladder which contains those solvent dishes dressed with sauce as the active ingredient & urethra cooperation incompletion which. < Choice figure >Drawing 1【課題】膀胱・尿道協調不全に基づく排尿障害の治療剤を提供する。【解決手段】3-(15-ヒドロキシペンタデシル)-2,4,4-トリメチル-2-シクロヘキセン-1-オン又はその塩、もしくはその溶媒和物を有効成分として含有する膀胱・尿道協調不全に基づく疾患の改善剤。【選択図】図1