Augmentin XR is a high-dose, slow-release version of the drug used specifically for sinus infections or community-acquired pneumonia in adults and children who weigh at least 88 lbs (40 kg) and. Discover how the antibiotic Augmentin works, what bacterial infections it treats, and how to safely manage your prescribed dosage. Detailed dosage guidelines and administration information for Augmentin (amoxicillin and clavulanate potassium). Includes dose adjustments, warnings and precautions. 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. Augmentin is prescription antibiotic used to treat many different infections caused by bacteria, such as sinusitis, pneumonia, ear infections, bronchitis, urinary tract infections, and infections of the skin. 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. Amoxicillin/clavulanic acid, also known as co-amoxiclav or amox-clav, sold under the brand names Augmentin, and Ranclav among others, is an antibiotic medication used for the treatment of a number of bacterial infections. [5] 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. Indicated for treatment of lower respiratory tract infections due to confirmed or suspected beta-lactamase-producing isolates of Haemophilus influenzae and Moraxella catarrhalis. 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.