- Graft-versus-host disease (GVHD) prophylaxis: Patients receive cyclosporine IV over 2 hours or orally 2-3 times daily beginning on day -3 and continuing until day 100, followed by a taper until day 180, in the absence of GVHD. Patients also receive mycophenolate mofetil IV or orally 2-3 times daily beginning on day -3 and continuing until day 30 (or 7 days after engraftment), in the absence of acute GVHD.