Statins are prescription drugs used to lower the level of cholesterol in the blood, according to MedicineNet. The drugs accomplish this by reducing the amount of cholesterol that the liver produces.
Statins can help reduce a person's risk of heart attack, stroke and death from heart disease by at least 25 percent, according to WebMD. In addition, they can help reduce the chance of a recurrent stroke or heart attack by approximately 40 percent.
Some of the most commonly prescribed statins in the United States include Lipitor, Lescol, Crestor, and Mevacor, according to MedicineNet. These statins differ in their strength and drug interactions, so they should only be used under close physician supervision.