[Excretion of fluoroquinolones into saliva]

The excretion of three fluoroquinolones derivatives into the saliva were studied in animal experiments. Ofloxacin per os administered to rabbits was excreted into the saliva well, and maintained the therapeutic level long--about 7 hours. Pefloxacin and ciprofloxacin iv. administered to mice were similarly excreted into the saliva at therapeutic levels and retained the antibacterial level for about 4 hours.