Calcium atorvastatin tablets are usually referred to as atorvastatin calcium tablets. When using the medication, it is not limited to being taken at night, but can be taken at any time of day throughout the day, except that clinics generally recommend taking it at night. Atorvastatin calcium tablets belong to a kind of long-acting statin lipid-lowering drugs, the duration can reach about 24 hours, can realize the lipid-lowering effect of the whole day 24 hours. Clinically, it is recommended to take it at night, mainly because statin drugs mainly inhibit cholesterol synthase, usually at night, the liver synthesizes cholesterol at a higher level, taking atorvastatin calcium tablets at night can inhibit cholesterol synthase to a greater extent, which can better reduce the level of low-density lipoprotein cholesterol. Since the drug has a long half-life, it can be taken at any time of the day and is not limited to the evening alone. Adverse reactions such as abdominal discomfort, flatulence, abnormal liver function tests, and blurred vision may occur during treatment with the drug. Active liver disease, including unexplained persistent elevation of hepatic aminotransferases and known hypersensitivity to any of the ingredients in this product are contraindicated. It is recommended that Atorvastatin Calcium Tablets need to be used under medical supervision.