Atorvastatin 20 MG Tablet is a statin drug that lowers cholesterol and triglycerides in the blood. It can also reduce the risk of heart attacks and stroke. Learn about its composition, dosage, interactions, contraindications and more. Lipitor is a prescription medicine used to lower the risk of stroke, heart attack, or other heart complications. Learn about dosage, side effects, drug interactions, warnings, and more. Atorvastatin Calcium Tablets, USP are available containing atorvastatin calcium, USP equivalent to 10 mg , 20 mg , 40 mg or 80 mg of atorvastatin . The 10 mg tablets are white to off-white ...