ATOCOR 5MG contains Atorvastatin, which belongs to a group of medicines called Statins. It is used to reduce high cholesterol levels in patients, including those who have certain inherited cholesterol disorders. Cholesterol gets builds up in your blood vessels leading to narrowing of blood vessels resulting in heart attack or stroke. ATOCOR 5MG is intended to reduce high cholesterol levels and is important to follow diet along with appropriate exercise, while taking medication. If you regularly drink grapefruit juice, talk to your doctor, since it may increase the amount of atorvastatin in the blood. Diabetic patients have to monitor their blood sugar more frequently while taking this medicine.