Whether atorvastatin calcium tablets can be one tablet in two days needs to be decided according to the clinical indications and therapeutic goals, and patients should follow the doctor’s instructions. The half-life of atorvastatin calcium tablets is 20-30 hours, used for secondary prevention of coronary heart disease, such as angina pectoris, post-PCI, post-myocardial infarction, and post-coronary artery bypass grafting patients, usually can be two days a piece of the doctor’s orders, two days a piece of enough to play a preventive role, and reduce the burden of medication. When used for lipid enhancement therapy, one tablet per day should be taken orally as prescribed by the doctor in order to play a rapid lipid-lowering and plaque-stabilizing role. The usual starting dose is 10mg once daily, and dose adjustments should be made at intervals of four weeks or more. Adverse reactions of atorvastatin calcium tablets are mainly dyspepsia, abdominal pain, individual patients may have rhabdomyolysis, liver function abnormalities and other serious reactions, if serious adverse reactions need to stop the drug immediately, in summary, the frequency of atorvastatin calcium tablets should be based on the therapeutic objectives and the patient’s therapeutic effect of the dose of the individualized adjustments must be made under the guidance of a doctor.