has role is protonated form of is enantiomer of 9-fluoro-3-methyl-10-(4-methylpiperazin-1-yl)-7-oxo-2,3-dihydro-7H-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylic acid levofloxacin(1-) quinolines antitubercular agent dextrofloxacin EC 5.99.1.3 [DNA topoisomerase (ATP-hydrolysing)] inhibitor topoisomerase IV inhibitor DNA synthesis inhibitor levofloxacin An optically active form of ofloxacin having (<i>S</i>)-configuration; an inhibitor of bacterial topoisomerase IV and DNA gyrase. CHEBI:63598 quinolone antibiotic fluoroquinolone antibiotic