The present invention provides a pharmaceutical composition for preventing or treating hyperlipidemia comprising (4S,5R)-5-[3,5-bis(trifluoromethyl)phenyl]-3-({2-[4-fluoro-2-me thoxy-5-(propan-2-yl)phenyl]-5-(trifluoromethyl)phenyl}methyl)-4 -methyl-1,3-oxazolidin-2-one or its pharmaceutically acceptable salt； and an angiotensin II receptor blocker as active ingredients.La presente invención proporciona una composición farmacéutica para evitar o tratar hiperlipidemia que comprende (4S,5R)-5-[3,5-bis(trifluorometil)fenil]-3-({2-[4-fluoro-2-metoxi -5-(propan-2-il)fenil)-5-(trifluoro-metil)fenil}metil)-4-metil-1, 3-oxazolidin-2-ona o su sal farmacéuticamente aceptable； y un bloqueador aceptor de angiotensina II como ingredientes activos.
