Lovastan is mainly used to treat high blood pressure and help reduce the risk of cardiovascular diseases such as heart attacks and strokes. This medicine works by relaxing the blood vessels, which facilitates blood flow and reduces the pressure on the heart. Lovastan may also be prescribed in some cases for other conditions determined by the doctor, such as improving kidney function in diabetics and reducing the workload on the heart in cases of excessive high blood pressure. It is always recommended to take the medicine according to the doctor's instructions and according to the specified dose.