Thymofaxine is generally referred to as Thymofaxine for Injection, which is mainly used for the treatment of chronic hepatitis B, and can also be used as a vaccine immune response enhancer, etc. Patients need to use the drug under the supervision of a physician. Thymofaxine for Injection is mainly used for the treatment of chronic hepatitis B. It can also be used as a vaccine immune response booster for immunocompromised patients on chronic hemodialysis and geriatric patients, and can also enhance the immune response to influenza vaccine and hepatitis B vaccine. However, the drug is contraindicated in patients who are allergic to the drug and in patients undergoing immunosuppressive therapy such as organ transplantation. Thymofaxine is well tolerated, but some patients may experience discomfort at the injection site. Temporary fluctuations in ALT levels may occur in patients with chronic hepatitis B treated with this drug. Also, patients using this drug for chronic hepatitis B require liver function tests and periodic evaluations during treatment, as well as testing for hepatitis B e antigen, surface antigen, HBV-DNA, and ALT enzymes at 2, 4, and 6 months after completion of treatment. In addition, the drug should be used under the supervision of a physician, and patients should pay attention to the sterilization and handling of syringes if used outside the hospital. Patients are advised to use Thymofaxine for Injection in strict compliance with medical advice and read the instructions carefully before using the drug to avoid unnecessary damage to the organism.