Nausea, diarrhea, vomiting, staining of teeth &/or tongue, pseudomembranous colitis; eosinophilia, leukopenia, neutropenia including agranulocytosis, thrombocytopenia, thrombocytosis & decreased Hb, pancytopenia & prolonged PT; myoclonic activity, psychic disturbances including hallucinations, confusional states or seizures, paresthesia, encephalopathy; rash, pruritus, urticaria, erythema multiforme, SJS, angioedema, candidiasis, fever including drug fever, anaphylactic reactions; oliguria/anuria, polyuria, serum creatinine & BUN elevations, urine discoloration, erythema, local pain & induration, phlebitis &/or thrombophlebitis, increases in serum transaminases, bilirubin &/or serum alkaline phosphatase; hypotension.