The main ingredient of Lipitor is atorvastatin calcium, which is the original dosage form. The effect of Lipitor is to lower LDL cholesterol as a key enzyme that inhibits cholesterol synthesis, and by inhibiting the key enzyme of cholesterol synthesis in the body, LDL cholesterol in the body can be lowered so that it can play a role in preventing and improving cardiovascular and cerebrovascular diseases. LDL is one of the risk factors of cardiovascular diseases, and if the level increases, it will cause atherosclerosis and other plaques. By using Lipitor, it can effectively reduce LDL cholesterol and achieve a strong reduction of LDL cholesterol level, and the use of Lipitor is not only effective and relatively safe, but also has relatively little effect on muscle damage, kidney damage and liver enzymes after application. The dose of Lipitor should be chosen according to the risk of cardiovascular disease and the level of LDL cholesterol under the guidance of a doctor.