 You will receive azacitidine as an injection under the skin once a day over 5 days in a row, starting about 5 weeks after the transplant. This may be repeated once a month for up to 4 months after the transplant. You will have about 23 days of rest between each cycle of treatment a cycle is the period of 28 days. If intolerable side effects occur, treatment with azacitidine may be interrupted or stopped altogether. 