What does the drug Atorvastatin do?

Atorvastatin reduces the level of bad cholesterol and triglycerides in the blood, and increases the level of good cholesterol, according to Drugs.com. It also helps reduce the risk of stroke, heart attack and other heart-related issues.

Atorvastatin is a HMG CoA reductase inhibitor, or statin, notes Drugs.com. It is often used in conjunction with a good diet and lifestyle changes, such as exercising, losing weight and stopping smoking. Although most people experience no side effects from using the drug, potential complications include mild memory problems, confusion and muscle problems. Rare side effects include allergic reactions, worsening of diabetes and liver problems, explains WebMD.