Scopolamine patches, aprepitant, fosaprepitant, phenothiazines (e.g. chlorpromazine, prochlorperazine), acupressure or acupuncture are not permitted during the acute and delayed phases. Methylprednisolone and hydrocortisone are permitted during the acute and delayed phases for prevention or treatment of reaction (e.g. thymoglobulin, alemtuzumab, blood products) and during delayed phase for GVHD prophylaxis. Administration of olanzapine other than ordered as per study procedures is not permitted. However, other antiemetics may be administered as needed (PRN) for treatment of breakthrough CINV. For patients receiving busulfan, scheduled administration of benzodiazepines such as lorazepam for seizure prophylaxis is permitted on the days that busulfan is given and for 24 hours after.