PROBLEM TO BE SOLVED: To provide a pharmaceutical composition for preventing and treating liver fibrosis or nonalcoholic fatty liver disease.SOLUTION: The present invention provides a pharmaceutical composition comprising 50 to 90% by weight of Cordyceps sinensis mycelium, and 10 to 50% by weight of astragalus.SELECTED DRAWING: None【課題】肝線維化または非アルコール性脂肪性肝を予防、治療する医薬組成物の提供。【解決手段】50重量%~90重量%の冬虫夏草菌糸体と10重量%~50重量%の黄耆とを含む医薬組成物。【選択図】なし