title: Comparative in-vitro activity of five fluoroquinolones against mycobacteria.
abstract: Fifty distinct strains of mycobacteria were investigated to determine their in-vitro susceptibility to five new fluoroquinolones (norfloxacin, pefloxacin, ofloxacin, enoxacin and ciprofloxacin). Ofloxacin and ciprofloxacin were found to be the most active, with minimum inhibitory concentrations (MIC) of 1.25 mg/l or less to all strains of Mycobacterium tuberculosis, M. bovis, M. xenopi, M. kansasii and BCG tested. All agents showed little activity against M. malmoense and M. avium-intracellulare complex with MIC values of greater than 2.5 mg/l.
mesh_terms: D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D002939:Ciprofloxacin / Q000494:pharmacology; D015365:Enoxacin; D009161:Mycobacterium / Q000187:drug effects*; D009162:Mycobacterium avium / Q000187:drug effects; D009163:Mycobacterium bovis / Q000187:drug effects; D009169:Mycobacterium tuberculosis / Q000187:drug effects; D009287:Naphthyridines / Q000494:pharmacology; D009170:Nontuberculous Mycobacteria / Q000187:drug effects; D009643:Norfloxacin / Q000031:analogs & derivatives / Q000494:pharmacology; D015242:Ofloxacin; D010078:Oxazines / Q000494:pharmacology; D015366:Pefloxacin; D011804:Quinolines / Q000494:pharmacology*
chemical_list: D000900:Anti-Bacterial Agents; D009287:Naphthyridines; D010078:Oxazines; D011804:Quinolines; D015366:Pefloxacin; D015365:Enoxacin; D002939:Ciprofloxacin; D015242:Ofloxacin; D009643:Norfloxacin