Treatment of a wide range of infections including anthrax, biliary tract, bone & joint infections, cat scratch disease, chancroid, cystic fibrosis exacerbations, gastroenteritis (traveller's diarrhoea,
Campylobacter enteritis, cholera,
Salmonella enteritis, shigellosis), gonorrhoea, neutropenia, Legionnaire's disease, otitis externa, otitis media, peritonitis, Q fever, lower resp tract infections (pseudomonal infections in cystic fibrosis), septicaemia, skin (soft-tissue) infections, spotted fevers, typhoid & parathyroid fever, typhus & UTI. Prophylaxis for meningococcal meningitis & surgical infections.