Ear and labyrinth disorders: Ototoxicity. Eye disorders: Transient stinging and irritation (ophthalmic), optic neuritis (prolonged use). Gastrointestinal disorders: Nausea, vomiting, glossitis, stomatitis, diarrhoea, enterocolitis. Nervous system disorders: Headache, peripheral neuritis (prolonged use). Psychiatric disorders: Delirium, mental confusion, mild depression.
Potentially Fatal: Blood dyscrasias (e.g. aplastic anaemia, hypoplastic anaemia, thrombocytopenia, granulocytopenia), Grey baby syndrome, hypersensitivity reactions (e.g. angioedema, anaphylaxis, urticaria, fever, vesicular and maculopapular dermatitis), superinfection (e.g. C. difficile-associated diarrhoea and pseudomembranous colitis).