Augmentin 625 Duo Tablet is an antibiotic that helps your body fight infections caused by bacteria. It is used to treat infections of the lungs (e.g., pneumonia), ear, nasal sinus, urinary tract, skin, and soft tissue. It will not work for viral infections such as the common cold. Augmentin 625 Duo Tablet Glaxo SmithKline Amoxycillin (500mg) + Clavulanic Acid (125mg) - Pilcare