Perform liver tests before & at 6, 12 wk following initiation of therapy; every 6 mth in patients w/ long-term use. Monitor patients who develop increased transaminase levels & discontinue if >3x ULN; skeletal muscle effects. History of liver disease & renal impairment. Increased risk of myopathy or rhabdomyolysis in hepatic or renal dysfunction, patients w/ hypothyroidism; chronic alcoholic patients. Hemorrhagic stroke; hyperglycemia. Increase in HbA1c may occur. Discontinue use if sign of myalgia or back pain occur. Concomitant use w/ warfarin or digoxin; azole antifungals (eg, ketoconazole, itraconazole), macrolides (eg, erythromycin, clarithromycin), HIV PIs (eg, indinavir, ritonavir, nelfinavir, saquinavir), verapamil, diltiazem, gemfibrozil, nicotinic acid, cyclosporine, amiodarone; colchicine. Elderly ≥65 yr.