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 (clavulanic acid), a beta-lactamase inhibitor that helps prevent certain bacteria from becoming resistant to amoxicillin. This combination enhances the effectiveness of the antibiotic against resistant strains. It is commonly prescribed for respiratory tract infections, urinary tract infections, skin infections, and sinusitis.