The main ingredient of Lipitor is atorvastatin, and atorvastatin from different manufacturers cannot be assessed as to which one is better, and a more suitable drug has to be chosen for the patient. The main mechanism of action of atorvastatin is to inhibit the enzyme of cholesterol synthesis in the body, which can reduce the level of cholesterol in the blood, and clinically it can be used for the treatment of hypercholesterolemia and mixed hyperlipidemia, and at the same time, it has the effect of stabilizing arterial plaque, which can be used for the treatment of cardiovascular and cerebrovascular diseases. Atorvastatin has different manufacturers, different manufacturers due to different production processes and costs, the price will have some differences, but the mechanism of action is mostly the same, can not judge which one to be better, and according to the patient’s condition and affordability, to choose the right drug for the patient. Adverse effects of atorvastatin include nausea, vomiting, muscle aches, joint pain, impaired liver function, etc. It is contraindicated for patients who are allergic to the drug components, have severe hepatic impairment, or have unexplained elevated liver enzymes. It is recommended to take it under the supervision of a physician.