Lovastatin is commonly used for the treatment of conditions related to heart disease, such as high cholesterol and high triglycerides. Lovastatin (Mevacor®) is a prescription medication used for treating a number of conditions related to heart disease, including high cholesterol. It is part of a class of drugs called HMG-CoA reductase inhibitors, which are more popularly known as statins. This article refers to immediate-release lovastatin.