Levofloxacin was FDA approved in 1996. Levofloxacin can cause serious side effects, including tendon problems, nerve damage, serious mood or behavior changes, or low blood sugar. To reduce the development of drug-resistant bacteria and maintain the effectiveness of LEVAQUIN® and other antibacterial drugs, LEVAQUIN® should be used only to treat or prevent infections that. What is Levaquin? Levaquin is a fluoroquinolone (flor-o-KWIN-o-lone) antibiotic that fights bacteria in the body. Levaquin is used to treat different types of bacterial infections. Levofloxacin is also used to treat people who have been exposed to anthrax or certain types of plague. Levofloxacin may be used in children 6 months of age and older to prevent anthrax infection after possible exposure, and to treat plague infection. Appropriate studies performed to date have not demonstrated geriatric-specific problems that would limit the usefulness of levofloxacin in the elderly. Levofloxacin is used for the treatment of pneumonia, urinary tract infections, and abdominal infections. Levofloxacin (Levaquin - a discontinued brand) is a prescription drug used to treat bacterial sinus infections, skin infections, lung infections, ear infections, urinary tract infections, as well as infections of the bones and joints. Levofloxacin (Levaquin) is an antibiotic that treats bacterial infections. It doesn’t treat colds, the flu or viral infections. Find patient medical information for Levofloxacin (Levaquin) on WebMD including its uses, side effects and safety, interactions, pictures, warnings, and user ratings Levaquin (Levofloxacin) may treat, side effects, dosage, drug interactions, warnings, patient labeling, reviews, and related medications including drug comparison and health resources. Levofloxacin (Levaquin) is an antibiotic used to treat bacterial infections. Common levofloxacin side effects include nausea, headaches, and sun sensitivity.