Levofloxacin is used to treat a variety of bacterial infections. This medication belongs to a class of drugs known as quinolone antibiotics. It works by stopping the growth of bacteria. This antibiotic treats only bacterial infections. It will not work for viral infections (such as common cold, flu). Using any antibiotic when it is not needed can cause it to not work for future infections.Levofloxacin oral tablet is used to treat bacterial infections in adults. These infections include: pneumonia , sinus infection ,worsening of chronic bronchitis, skin infections , chronic prostate infection, urinary tract infections ,pyelonephritis (kidney infection) ,inhalational anthrax.Levofloxacin may be used as part of a combination therapy. This means you may need to take it with other medications.