Atorvastatin belongs to the group of lipid-lowering drugs, mainly used in the treatment of hypercholesterolemia and coronary heart disease. Clinically, atorvastatin can inhibit the biosynthesis of cholesterol, so as to reduce the concentration of cholesterol in plasma and serum lipoprotein. Secondly, it can enhance the absorption and metabolism of surface LDL by liver cells, which is mainly used in the treatment of hypercholesterolemia and coronary heart disease. Usually the drug can reach the peak blood concentration 1~2 hours after taking, and finally it will be metabolized by the liver and excreted through bile. The most common adverse reactions are constipation, flatulence, indigestion and abdominal pain. It is contraindicated for those who are allergic to the ingredients of the drug and for pregnant and perinatal women. It is recommended to visit a professional medical institution and take the medication as prescribed by the doctor.