The difference between Lipitor 10 mg and 20 mg is the difference in the intensity of lipid lowering. Lipitor is a calcium atorvastatin tablet that inhibits cholesterol synthesis, lowers LDL cholesterol, inhibits atherosclerosis, and protects the heart and brain vessels. Since the abnormalities of blood lipids, especially LDL cholesterol, tend not to be as high in Chinese as in Westerners, satisfactory therapeutic effects can be achieved with moderate strength statins. There is a 6% difference in lipid-lowering intensity between Lipitor 10 mg and 20 mg. If some patients taking 10 mg of Lipitor do not achieve the required lipid level, Lipitor can be adjusted to 20 mg under the guidance of a physician. However, some patients can achieve satisfactory control with 10 mg Lipitor over a long period of time, and the use of an appropriately low dose ensures safety and will cause less damage to muscle and liver. If satisfactory therapeutic effect is still not achieved with 10 mg or 20 mg of Lipitor, the combination of other drugs with lipid-lowering mechanism can be used reasonably under the guidance of a doctor.