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. Overview: Amoxicillin is an antibiotic that is used for infections caused by certain bacteria. It kills certain bacteria by preventing them from being able to create their cell wall. Common side. 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. Amoxicillin is a penicillin antibiotic that fights bacteria. It is used to treat many types of infections such as tonsillitis, bronchitis, pneumonia, and others. Amoxicillin is also used to treat tonsillitis and pharyngitis (sore throat). Amoxicillin belongs to the group of medicines known as penicillin antibiotics. It works by killing the bacteria and preventing their growth. However, this medicine will not work for colds, flu, or other virus infections. 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. Amoxicillin is effective for the treatment of early cutaneous Lyme borreliosis; the effectiveness and safety of oral amoxicillin is neither better nor worse than common alternatively-used antibiotics. Amoxicillin/Clavulanate is a prescription medication used to treat the symptoms of bacterial infections such as sinusitis, pneumonia, ear infections, bronchitis, urinary tract infections, and infections of the skin. Learn about side effects, drug interactions, dosages, warnings, and more. 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.