Augmentin 625 Duo Tablet is a combination of Amoxycillin and Clavulanic Acid. It is used for the treatment of bacterial infections that affect the ears, lungs, nose, urinary tract, skin, bones, etc. This medication is effective only for the treatment of infections caused by bacteria and not viruses. Augmentin 625 Duo Tablet is effective against a large number of bacteria. Amoxycillin works by preventing the formation of bacterial cell walls and killing the infection-causing bacteria. Clavulanic acid prevents bacteria from destroying Amoxycillin and ensures extended anti-bacterial activity.