Inflammation, thrombophlebitis, pain at inj site, rash, pruritus, urticaria. Abdominal pain, nausea, vomiting, diarrhea, pseudomembranous colitis. Reversible thrombocythemia, eosinophilia, thrombocytopenia, leucopenia, neutropenia; increase in serum conc of bilirubin, transaminase, alkaline phosphatase & lactic acid dehydrogenase; headache, paresthesias; oral & vag candidiasis.