<prompt> Fluoroquinolone with highest oral bioavilability:-LevofloxacinGemifloxacinCiprofloxacinNorfloxacin  <response>: Bioavailability : rate and extend to which an administered drug reaches the systemic circulation . Of the above mentioned drugs:- Levofloxacin has maximum bioavailability Norfloxacin has minimum bioavailability 