- Allogeneic transplantation: Within 1-3 months after recovery from induction therapy, patients receive busulfan IV every 6 hours on days -7 to -4 and cyclophosphamide IV over 4 hours on days -3 and -2. Allogeneic bone marrow or peripheral blood stem cells (PBSCs) are infused on day 0. Patients receive graft-vs-host disease (GVHD) prophylaxis comprising cyclosporine IV over 1-4 hours beginning on day -1 and then orally (when tolerated) twice daily until day 180. Alternatively, patients may receive tacrolimus IV over 24 hours beginning on day -1 and then orally twice daily until day 180. Patients also receive methotrexate IV on days 1, 3, 6, and 11.