SERUM LIPID LOWERING AGENT

PURPOSE:To obtain a serum lipid lowering agent useful for hyperlipemia, arteriosclerosis, etc., having excellently lowering action on whole cholesterol of serum, containing a specific compound or a salt thereof as an active ingredient. CONSTITUTION:A serum lipid lowering agent containing [[5-[[3-(4-acetyl-3- hydroxy-2-propylphenoxy)propyl]thio]-1,3,4-thiadiazol-2-yl]thio]acetic acid shown by the formula or a salt thereof (e.g. salt with Na, K, ethylamine or propylamine). The compound shown by the formula is expected to reduce concentration of other lipids such as neutral lipid and phospholipid. The compound shown by the formula and the salt thereof are used with a generally useful carrier for pharmaceutical manufacturing, excipient and other additives, prepared into tablet, powder, etc., and orally administered. A dose is usually 90-360mg per adult daily and preferably administered dividedly three times.