PROBLEM TO BE SOLVED: To provide a drug, a quasi drug and a food having excellent endurance improving effect, anti-fatigue action, and high safety.SOLUTION: An endurance improver contains ceramide ciliatine as an active ingredient.COPYRIGHT: (C)2012,JPO&INPIT【課題】優れた持久力向上作用、抗疲労作用を有し、且つ安全性の高い医薬品、医薬部外品及び食品の提供。【解決手段】セラミドシリアチンを有効成分とする持久力向上剤。【選択図】なし