Erythema, local pain, thrombophlebitis; rash, pruritus, urticaria, TEN, fever, anaphylactic reactions; nausea, vomiting, diarrhoea, pseudomembranous colitis; eosinophilia, leucopenia, neutropenia, agranulocytosis; mild increase in serum transaminases, bilirubin &/or serum alkaline phosphatase; oliguria/anuria, polyuria, acute renal failure; myoclonic activity, psychic disturbances, confusional states or convulsions; taste perversion.