Levoxin 500 mg is a prescription medication that contains levofloxacin, a potent antibiotic belonging to the fluoroquinolone class. It is used to treat a variety of bacterial infections, including those affecting the respiratory tract, urinary tract, and skin, as well as certain types of pneumonia and bronchitis. Levofloxacin works by inhibiting bacterial DNA synthesis, effectively halting the growth and reproduction of bacteria. The 500 mg dosage is typically prescribed for more severe infections or when a higher concentration of the medication is required. As with any antibiotic, it is important to take Levoxin as directed by a healthcare professional to ensure its effectiveness and to reduce the risk of antibiotic resistance.