Multiple myeloma chemotherapy usually involves intravenous or subcutaneous injection of chemotherapy drugs, bone-protecting drugs and antibiotics. 1. Chemotherapeutic drugs: chemotherapy for myeloma requires targeted drugs to control the growth of cancer cells, such as bortezomib, which can reduce the number of cancer cells and improve the clinical symptoms of myeloma. 2. Bone-protecting drugs: Chemotherapy is usually accompanied by some bone-protecting drugs, such as bisphosphonates (zoledronic acid), which have no direct anticancer effect but can protect bones. 3. Antibiotics: as myeloma will lead to low immunity, it may be combined with infection in lungs or other parts of the body, once infection occurs, anti-inflammatory and anti-infection effects can be achieved through antibiotics, such as cephalosporin and other drugs. Multiple myeloma chemotherapy should be formulated by the doctor according to the condition and the basic condition of the body to make the appropriate chemotherapy program.