Mannitol peptide is generally used in the adjuvant treatment of leukopenia, respiratory tract infections, aplastic anemia and tumors, which can enhance immune function, activate phagocytosis, and improve bone marrow hematopoietic ability. Some patients may experience adverse reactions such as fever, clamminess, rash, fever, chest tightness, etc. after using the drug, which may also cause anaphylaxis in severe cases. Regular checkups are needed during the use of the drug to avoid abnormalities, and pregnant women, lactating women, and allergic individuals should be cautious. If you suffer from bronchial asthma, rheumatic heart disease or bronchitis, this product should be prohibited, in addition, people who are allergic to this product or when the drug properties change should be prohibited. If you need to use mannan peptide, you should go to a regular hospital to consult a doctor, under the guidance of the doctor to use the drug, do not unauthorized use of drugs.