Simvastatin tablets are usually taken in a dose of 5mg to 40mg per day, taken in the evening. Simvastatin tablets are a lipid-regulating drug that can be used in patients with hyperlipidemia, coronary heart disease, and familial hypercholesterolemia to reduce the risk of these diseases. The usual dose of simvastatin tablets is 5mg to 40mg per day. cholesterol is generally most actively synthesized at night, and it is recommended that they be taken at night in order to work during the time of active synthesis. Adverse reactions to simvastatin tablets include nausea, diarrhea, rash, dyspepsia, pruritus, alopecia, dizziness, muscle cramps, myalgia, pancreatitis, sensory abnormalities, peripheral neuropathy, insomnia, depression, vomiting, anemia, erectile dysfunction, and interstitial lung disease. Simvastatin tablets are contraindicated in persons who are hypersensitive to any of the components of simvastatin tablets, in persons with active hepatic disease or unexplained persistent elevation of serum aminotransferases, and in pregnant and lactating women. Combination with strong CYP3A4 inhibitors, with gemfibrozil, cyclosporine or danazol is prohibited. If there is any discomfort, consult a doctor in time, the drug should be taken according to the doctor’s prescription, not self-medication. Regularly review liver function, creatine kinase and other items. Take a light diet during the medication, and do not eat more fried, barbecue and other greasy food.