If your medical provider has ordered Levaquin I assume there are good reasons. Allergy to penicillin?? Levaquin is an effective ATB . Levofloxacin (trade names Levaquin (US), Tavanic (EU), and others) is a broad-spectrum antibiotic of the fluoroquinolone drug class. Levaquin is used to treat bacterial infections of the skin, sinuses, kidneys, bladder, or prostate. Levaquin is also used to treat bacterial infections that cause bronchitis or pneumonia.