Leukopenia, thrombocytopenia, bleeding, anemia; hepatic function disorders; elevations of BUN & creatinine, nausea, vomiting, anorexia, stomatitis, diarrhea, abdominal pain, constipation; rash; severe alopecia, erythema, pruritus, carpopedal numbness, headache; ECG abnormality, arrhythmia, hypotension; malaise, flush.