Discontinue use if myopathy is diagnosed or suspected. Advise patient to promptly report any unexplained &/or persistent muscle pain, tenderness, or weakness. Increased risk of skeletal muscle effects (eg, myopathy & rhabdomyolysis) when higher doses are used concomitantly w/ cyclosporine & strong CYP3A4 inhibitors (eg, clarithromycin, itraconazole, HIV or HCV PIs). Report of rare cases of rhabdomyolysis w/ acute renal failure secondary to myoglobinuria. Carry out confirmatory test w/in 5-7 days if creatine kinase (CK) levels are significantly elevated at baseline (>5 times ULN); do not start treatment if repeat test confirms a baseline CK >5 times ULN. Persistent elevations in hepatic transaminases can occur. Check liver enzyme tests before initiating therapy & as clinically indicated thereafter.