Augmentin is a broad-spectrum antibiotic that is to treat bacterial infections. It belongs to a class of drugs called penicillin antibiotics and is commonly to treat infections caused by bacteria such as Staphylococcus aureus, Streptococcus pyogenes, and Escherichia coli. Augmentin is available in oral and intravenous (IV) formulations and is to treat a wide range of infections, including respiratory tract infections, skin infections, urinary tract infections, and ear infections.