Rhabdomyolysis during treatment with epsilon-aminocaproic acid.

Severe rhabdomyolysis and acute renal failure occurred in a patient receiving epsilon-aminocaproic acid. The lack of evidence of vascular involvement in the muscle biopsy specimen suggests that epsilon-aminocaproic acid may have direct myotoxicity. This drug may produce a spectrum of muscle disease from mild myopathy to life-threatening rhabdomyolysis.