An aryloxyisobutyric acid derivate with antihyperlipidemic activity. Although the exact mechanism of action has not been fully characterized, clofibrate may enhance the conversion of very-low-density lipoprotein (VLDL) to low-density lipoprotein (LDL), decreasing the production of hepatic VLDL, inhibiting cholesterol production, and increasing fecal excretion of neutral sterols.