Clofibride is a hypolipaemic drug of p-chlorophenoxyisobutyric type. Clofibride hypolipaemic effects could be due, partially, to a reduction of hormono-dependent lipolysis. Clofibride decreased blood cholesterol and total lipids, increased liver weight and liver catalase content, and decreased biliary excretion of cholesterol in normolipidemic rats after a 7 day treatment.