Mild-moderate musculoskeletal pain during treatment (severe cases occasionally appear), dysuria, thrombocytopenia, splenomegaly, anemia, epistaxis, cephalgia, diarrhea, vasculitis, medullary bone pain, nausea/vomiting, alopecia, neutropenic fever, mucositis, fatigue, anorexia, dyspnea, headache, cough, skin rash, chest pain, stomatitis, constipation, pain (unspecified), and reversible elevation in serum uric acid, lactate dehydrogenase enzyme, alkaline phosphatase, gamma-glutamyl transpeptidase.