Levofloxacin is in a group of antibiotics called fluoroquinolones (flor-o-KWIN-o-lones). Levofloxacin fights bacteria in the body. Levofloxacin is used to treat bacterial infections of the skin, sinuses, kidneys, bladder, or prostate. Levofloxacin is also used to treat bacterial infections that cause bronchitis or pneumonia, and to treat people who have been exposed to anthrax or plague.

Levofloxacin is a member of the fluoroquinolone class of antibacterial agents. Levofloxacin inhibits bacterial type II topoisomerases, topoisomerase IV and DNA gyrase.

Levofloxacin, a fluoroquinolone antiinfective, is the optically active L-isomer of ofloxacin. Levofloxacin is used to treat bacterial conjunctivitis, sinusitis, chronic bronchitis, community-acquired pneumonia and pneumonia caused by penicillin-resistant strains of Streptococcus pneumoniae, skin and skin structure infections, complicated urinary tract infections and acute pyelonephritis.