(BUSINESS WIRE)--Pfizer announced today that Lipitor® (atorvastatin calcium) Tablets (80 mg) was more effective than simvastatin (20 mg–40 mg) in reducing the risk of multiple cardiovascular events in patients with a history of heart attacks in the Incremental Decreases through Aggressive Lipid Lowering (IDEAL) clinical trial. Cardiovascular events included heart attack, stroke, and cardiac revascularization
