The generic name of Nitasyn, Thymopeptide for Injection or Thymofaxine, can fight cancer by boosting the immune function of cancer patients, with side effects such as discomfort, redness and swelling at the injection site. Thymopeptide for Injection and Thymofaxine for Injection have been shown to be effective in the treatment of some patients with chronic hepatitis B. In addition, they can be used as vaccine immune response enhancers in immunocompromised patients, including those undergoing chronic hemodialysis and geriatric patients. The drug has a certain adjuvant therapeutic effect on cancer patients, mainly through the enhancement of the immune function of the user to play the anti-cancer effect. The drug is contraindicated in people who are allergic to the product, and those who are undergoing immunosuppression (e.g. organ transplantation). Adverse reactions after using the drug are rare, and may include discomfort at the injection site, redness, swelling, skin rash, transient muscle atrophy, polyarthralgia with edema, etc. The specific occurrence varies from person to person. The specific use of the drug should be carried out under the guidance of specialists, and need to comply with medical advice.