Amoxicillin/clavulanic acid is a combination penicillin-type antibiotic used to treat a wide variety of bacterial infections. It works by stopping the growth of bacteria. This antibiotic treats only bacterial infections. It will not work for viral infections (such as common cold, flu). Amoxicillin and clavulanate potassium is a combination antibiotic used to treat bacterial infections like sinusitis, pneumonia, UTIs, ear, skin, and bronchial infections. Augmentin is a prescription antibiotic combining amoxicillin and clavulanate to treat bacterial infections like sinusitis, pneumonia, UTIs, and bronchitis. The typical adult dosage of Augmentin is 875 mg amoxicillin/125 mg clavulanic acid (one tablet) taken every 12 hours, with treatment lasting 3 to 14 days depending on the type of infection. Augmentin is an oral antibacterial combination consisting of amoxicillin and the beta-lactamase inhibitor, and clavulanate potassium. Learn about dosages, side effects, drug interactions, and warnings. Learn about Augmentin (amoxicillin / clavulanate) usage and dosing. Read the latest news and reviews about the drug as well as potential side effects and popular alternatives. Overview: Amoxicillin/clavulanate is an antibiotic that is used for infections caused by certain bacteria. Common side effects include diarrhea, nausea, vomiting, or a rash. Serious side effects. Adults usually take Augmentin tablets in doses ranging from 250 mg to 875 mg of amoxicillin combined with clavulanate potassium. The exact dose depends on the infection’s severity and type. Discover how the antibiotic Augmentin works, what bacterial infections it treats, and how to safely manage your prescribed dosage. Amoxicillin and clavulanate combination is an antibiotic that belongs to the group of medicines known as penicillins and beta-lactamase inhibitors. It works by killing the bacteria and preventing their growth. However, this medicine will not work for colds, flu, or other virus infections.