Clofibrate-induced myopathy in the rat

Abstract
Rats were given daily injections of 0.2 or 0.5 g/kg chlorophenoxyisobutyrate (clofibrate) for 9 to 46 days. Lower leg muscles were studied with light and electron microscopy. Daily treatment with 0.5 g/kg of the drug for 26–46 days caused myopathic changes.