Effects of clinofibrate on the coagulative and fibrinolytic activity in an intrinsic hyperlipidemia induced by a cholesterol free-high fructose diet (HFD) for 14 days were studied using male Wistar rats. There were significant and positive correlations between plasma fibrinogen level and serum lipid content, and between fibrinogen level and VLDL-LDL-lipid content. Clinofibrate administration (50 and 100 mg/kg/day, p.o.) significantly inhibited the increase in plasma fibrinogen level as well as serum- and VLDL-LDL-lipids. It is concluded that clinofibrate, in addition to its beneficial effect on the serum lipid profile, can effectively reduce the plasma fibrinogen level.