How does lovastatin work?

Lovastatin is broken down by the body and changed into an active metabolite that interrupts the body's natural production of cholesterol by inhibiting an enzyme that cells use to make cholesterol. This helps prevent cholesterol and other fatty substances from building up on artery walls, which eventually can narrow the blood vessel walls and cause heart disease. Taking lovastatin is intended to reduce the risk of heart disease, heart attack, stroke and angina.