Amoxicillin-Clavulanate is a combination antibiotic used to treat a wide range of bacterial infections. It contains amoxicillin, a penicillin-type antibiotic that kills bacteria, and clavulanate potassium, a beta-lactamase inhibitor that helps prevent certain bacteria from becoming resistant to amoxicillin. This medication is commonly prescribed for infections of the respiratory tract, urinary tract, skin, and sinuses.