Atorvastatin specific time to take can not be determined, need to be under the guidance of the doctor according to the condition of the comprehensive assessment of the decision. Clinically, atorvastatin is a selective, competitive inhibitor of HMG-CoA reductase, which can reduce the level of plasma cholesterol and lipoproteins, and enhance the receptor on the surface of liver cells, the uptake of low-density lipoproteins and catabolism. It is mainly used in the treatment of hypercholesterolemia, coronary heart disease and other diseases. Usually the drug needs to be taken regularly for a long time according to the doctor’s instructions, which can effectively prevent the serum lipid level from rising and prevent myocardial infarction caused by the blockage of coronary arteries. Therefore, patients with coronary heart disease need to take the drug for a long period of time, and those who have undergone cardiac stent implantation may need to take the drug for the rest of their lives. Adverse effects such as fever, abdominal discomfort and muscle fatigue may occur after taking the drug. The drug is contraindicated in people who are allergic to the components of the drug, people with active liver disease, including unexplained persistent elevation of hepatic aspartate aminotransferase and/or alanine aminotransferase, pregnant women or women of childbearing age who are likely to conceive, and lactating women. In the process of taking the drug, it is necessary to pay attention to the effects of the drug on skeletal muscle and liver function, while children, the elderly and other special groups, need to use the drug under the supervision of a doctor. If you need to stop using atorvastatin treatment, it is recommended to consult a doctor in time, after the doctor comprehensively evaluates the condition to decide whether the drug can be discontinued, remember not to stop the drug privately, to avoid harm to the health of the body.