Grafapex is part of the Alkylating Drugs class and treats Myelodysplastic Syndromes and Leukemia. Alkylating drugs are used to treat brain tumors, melanoma, Hodgkin's disease, Non-Hodgkin's lymphoma, breast cancer, ovarian cancer, neuroblastoma, leukemia, multiple myeloma, retinoblastoma, and prostate cancer. They work by inhibiting cancer cell growth and slowing it down. Grafapex is only available as a brand name drug.