Najma Sultana, M. Saeed Arayne, Safila Sharif
Levofloxacin is (-)-(S)-9-fluoro-2,3-dihydro-3-methyl-10-(4-methyl-1-pipe-razinyl)-7oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid hemihydrate and a fluorinated quinolone antibacterial agent extensively used against both Gram-positive as well as Gram-negative microorganisms