A 64-year-old man with acute myelogenous leukemia is commenced on chemotherapy. The regimen is subject to change as per the patient’s initial responsiveness. Physical examination one week following commencement of therapy shows two small mouth ulcers. Which of the following is the most appropriate next best step in management?
Amifostine
Dexrazoxane
Imatinib
Methotrexate
Vancomycin + ceftriaxone
