Mannitol peptide has the effect of enhancing immunity, activating phagocytosis, and elevating peripheral leukocytes, and it can also improve bone marrow hematopoietic function and the body’s stress capacity. A small number of patients with transient fever, skin rash and other side effects after use of the drug. The common forms of mannan peptide are tablets, oral solution, injection, etc. It is clinically used in the adjuvant treatment of immunocompromise, recurrent respiratory tract infections, leukopenia, aplastic anemia and tumors, and it can be used to alleviate the adverse effects of radiotherapy or chemotherapy on the hematopoietic system and the gastrointestinal reactions. Note: Mannitol peptide allergy is prohibited, patients with rheumatic heart disease, bronchial asthma, bronchitis is prohibited, pregnant women and lactating women should be cautious. If you need to use mannan peptide, it is recommended to consult a professional doctor, follow the doctor’s instructions for standardized treatment, can not blindly use their own medication.