Lipitor is a calcium atorvastatin tablet, which is a relatively safe lipid-regulating drug for long-term use. It has two main side effects that are more serious: one is hepatotoxicity; the other is its muscle toxicity. Therefore, it has the side effect of liver function damage, which requires monitoring liver function during taking the drug, and it is generally required to continue taking the drug for observation when the aminotransferase increases below 3 times, and to discontinue the drug if the aminotransferase increases above 3 times. At the same time, its muscle toxicity may manifest as myositis, myalgia, rhabdomyolysis, etc., which mainly manifests as muscle pain all over the body after long-term use, accompanied by elevated blood creatine kinase and myoglobinuria. In this case, it is necessary to stop the drug and use some diuretics or alkalinize the urine, which can reduce the impact on kidney function. There are other effects on blood glucose, and long-term use may increase blood glucose, etc.