Leukopenia should be treated with different drugs according to different causes. The causes of leukopenia include drug factors, blood diseases, tumors and so on, which can be treated with vitamin B4, cyclosporine, granulocyte stimulating factor and other drugs. 1. Drug causes: for example, chloramphenicol can cause leukopenia, you can appropriately reduce the dose of the drug, and at the same time take some drugs to raise the white blood cells, such as vitamin B4, Ricodin, etc., which can help white blood cell count rise. 2. Blood diseases: aplastic anemia, leukemia, myelodysplastic syndromes and other blood diseases can also cause leukopenia, need to actively treat the primary disease, for example, leukemia with vincristine and prednisone chemotherapy, aplastic anemia with anti-lymphocyte/thymocyte globulin, cyclosporine and other treatments, the condition of the disease can be relieved after the white blood cell value can be increased. 3. Tumors: Tumors and anti-tumor drugs may cause a decrease in the number of white blood cells, and granulocyte-stimulating factor can be used to elevate white blood cells. Leukopenia may also be caused by other reasons. Once leukopenia occurs, you should go to the hospital in time to find out the cause and take treatment under the guidance of the doctor.