Calcium statin tablets can be taken at any time of the day, as long as care is taken to take regular doses at the same time each day, and statins are generally better taken at night. The mechanism of action of statin calcium tablets is to inhibit the rate-limiting enzyme HMG-CoA reductase for cholesterol synthesis in the liver, and this enzyme will be more active at night. If the drug is taken at night, it happens to reach the peak of blood concentration at night, which can maximize the inhibition of the activity of HMG-CoA reductase, which is equivalent to maximizing the inhibition of hepatic synthesis of cholesterol. The main effect of statin calcium tablets is to inhibit cholesterol synthesis, with the effect of lowering plasma cholesterol. Clinically, it is commonly used in the treatment of hyperlipidemia, coronary heart disease, cerebral infarction and other atherosclerotic diseases. Long-term application of statins is conducive to stabilizing atherosclerotic plaques and may even reduce the size of plaques. Statin drugs need to be used under the guidance of a professional doctor, it is recommended that patients do not take statin drugs without authorization, so as not to take improper damage to the body or affect the efficacy of the drug.