Medscape - Infection dosing for Levaquin, Levofloxacin Systemic (levofloxacin), frequency-based adverse effects, comprehensive interactions, contraindications, pregnancy & lactation schedules. LEVAQUIN Injection is supplied in single-use vials containing a concentrated levofloxacin solution with the equivalent of 500 mg (20 mL vial) and 750 mg (30 mL vial) of levofloxacin in Water. Levofloxacin is also used to treat and prevent plague (including pneumonic and septicemic plague). Levofloxacin belongs to the class of medicines known as quinolone antibiotics. Levofloxacin is used for the treatment of pneumonia, urinary tract infections, and abdominal infections. Levofloxacin is in a class of antibiotics called fluoroquinolones. It works by killing bacteria that cause infections. Antibiotics such as levofloxacin will not work for colds, flu, or other viral infections. Using antibiotics when they are not needed increases your risk of getting an infection later that resists antibiotic treatment. 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. Learn about side effects, dosages, drug interactions, and more. Find patient medical information for Levofloxacin (Levaquin) on WebMD including its uses, side effects and safety, interactions, pictures, warnings, and user ratings Levofloxacin is a fluoroquinolone antibiotic used to treat serious bacterial infections and prevent anthrax or plague exposure when safer options aren't suitable. Levofloxacin tablets, USP are indicated for the treatment of uncomplicated skin and skin structure infections (mild to moderate) including abscesses, cellulitis, furuncles, impetigo, pyoderma, wound infections, due to methicillin-susceptible Staphylococcus aureus, or Streptococcus pyogenes. Levofloxacin (Levaquin) is an antibiotic that treats bacterial infections. It doesn’t treat colds, the flu or viral infections.