Discontinue treatment if markedly elevated creatine kinase levels occur or myopathy is diagnosed or suspected. Temporarily w/hold treatment in any patient w/ acute, serious condition suggestive of myopathy or predisposing to development of renal failure secondary to rhabdomyolysis (eg, sepsis, hypotension, dehydration, major surgery, trauma, severe metabolic, endocrine, & electrolyte disorders, or uncontrolled seizures). Interrupt therapy if serious liver injury w/ clinical symptoms &/or hyperbilirubinemia or jaundice occurs during treatment; do not restart if alternate etiology is not found. Consider dose reduction for patients w/ unexplained persistent proteinuria &/or hematuria during routine urinalysis testing. Reports of myopathy & rhabdomyolysis w/ acute renal failure secondary to myoglobinuria; immune-mediated necrotizing myopathy; increases in serum transaminases (AST or ALT); proteinuria & hematuria; increases in HbA1c & fasting serum glucose levels. Post-marketing reports of fatal & non-fatal hepatic failure. Perform liver enzyme tests before initiation of treatment & if signs or symptoms of liver injury occur. Patients w/ predisposing factors for myopathy (eg, age >65 yr, inadequately treated hypothyroidism, renal impairment); patients who consume substantial quantities of alcohol &/or have history of chronic liver disease. Concomitant use w/ other lipid-lowering therapies (fibrates or niacin), gemfibrozil, cyclosporine, lopinavir/ritonavir, or atazanavir/ritonavir; colchicine; anticoagulants; drugs that may decrease levels or activity of endogenous steroid hormones eg, ketoconazole, spironolactone & cimetidine. Increased exposure in Asian patients & in patients w/ severe renal impairment who are not receiving hemodialysis. Counsel adolescent females on appropriate contraceptive methods while on therapy. Has not been studied in controlled clinical trials involving prepubertal or patients <10 yr. Higher risk of myopathy in elderly.