Thymidine enteric-coated tablets are prescription drugs, due to the different purposes of medication, different physique of patients, and the difference of individual sensitivity to drugs, so it needs to be analyzed on a case-by-case basis, and the doctor should decide how long a course of medication should be taken according to the individual situation of patients, and it is safest to use the medication according to the doctor’s prescription. Thymidine enteric dissolve tablet is a kind of immune enhancement drug, clinically used for the treatment of various primary and secondary immune deficiency diseases, and patients with weak and low immune function, usually three months is a course of treatment. If it is used for the treatment of chronic hepatitis B, viral hepatitis, upper respiratory tract infections and other inflammatory diseases, a course of treatment is usually given for one month. If adverse reactions such as nausea, fever, dizziness, chest tightness, fatigue, headache, insomnia, drowsiness, etc. occur during the medication period, the medication should be discontinued immediately and medical attention should be sought promptly. In addition, during the medication period, you should also change the bad habits and adjust the diet structure. Avoid staying up late, avoid being sedentary, and participate in more outdoor activities to enhance physical fitness. Eat more vegetables and fruits, drink more water, and do not overeat. The combination of drug treatment and life care can promote the improvement of the disease.