Lovastatin is a medication that is used to treat high cholesterol and reduce the risk of heart attack and stroke. It is used together with a proper diet, weight loss, and exercise to decrease the amount of cholesterol and other fatty substances in the blood. Lovastatin belongs to a group of medications called HMG CoA reductase inhibitors or statins, which work by slowing the production of cholesterol in the body. It is also used to prevent certain types of heart and blood vessel problems in patients with risk factors for heart problems. Lovastatin is available as an immediate-release tablet and an extended-release tablet, and it is taken orally once daily with meals or at bedtime. The dosage is based on the patients medical condition, response to treatment, age, and other medications they may be taking. It is important to inform the doctor or pharmacist about all the products the patient uses, including prescription drugs, nonprescription drugs, and herbal products. Lovastatin should not be used if the patient is also taking certain medications, such as boceprevir, cobicistat-containing products, cyclosporine, gemfibrozil, nefazodone, telaprevir, certain antibiotics, or medicines to treat HIV/AIDS, as it may increase the risk of muscle injury and kidney problems.