Pains, inflammation, thrombophlebitis at inj site; urticaria, rash, pruritus, erythema multiforme, TEN & SJS; nausea, vomiting, abdominal pain, diarrhoea, Pseudomembranous colitis; increased eosinophils, reversible thrombocythaemia, thrombocytopenia, leucopenia, neutropenia, agranulocytosis, +ve direct or indirect Coombs' test, shortened partial thromboplastin; increased transaminases, alkaline phosphatase, LDH & bilirubin; paraesthesia, headache, seizures, angioedema, anaphylaxis; oral & vag candidosis.