Diarrhea, nausea, vomiting, abdominal pain, skin rashes, urticaria, erythema multiforme, vaginitis, abnormal taste, headache, dizziness, tiredness, hot flushes. Gastritis, stomatitis, glossitis, black "hairy" tongue, enterocolitis, pseudomembranous colitis. Anemia, thrombocytopenia, thrombocytopenic purpura, eosinophilia, leukopenia, agranulocytosis.