Pneumonias & nosocomial pneumonias; UTI; intra-abdominal & gynaecological infections (eg, endometritis & pelvic inflammatory disease); bacterial meningitis; septicaemia in adults & childn. Empiric treatment for presumed infections in patients w/ febrile neutropenia as monotherapy or in combination w/ antiviral or -fungal agents. Monotherapy or in combination w/ other antimicrobial agents for polymicrobial infections.