fluoroquinoloner såsom ciprofloxacin, ofloxacin og levofloxacin giver højere serumkoncentrationer og langt bedre fordeling i væv end norfloxacin.
generation fluoroquinolones such as ciprofloxacin, ofloxacin and levofloxacin show higher serum concentrations and a much better tissue distribution than norfloxacin.