Calm heartburn and indigestion with Gaviscon heartburn relief. Featuring popular options like Gaviscon Double Action and Gaviscon Advance, our selection of Gaviscon products will help you get over heartburn quickly, with long-lasting results. Creating a protective layer over the contents of your stomach, Gaviscon prevents acid reflux and that unpleasant burning sensation. Order with Pharmacy2U for flexible delivery and payment options.