Gaviscon dual action chewable tablets peppermint provides improved indigestion and soothing heartburn relief. For fast, soothing and long lasting relief from the pain and discomfort of heartburn (gastric reflux) and indigestion. It works in two different ways: 1. More effective reduction of excess stomach acid to relieve discomfort. 2. Forming a protective layer over the stomach contents to soothe the burning pain in your chest.