Gaviscon Double Action Liquid Heartburn Indigestion Aniseed 300mlSee leaflet for further information.- Gets to Work Instantly - Gaviscon Double Actions formulation gets to work in seconds to create a protective barrier that lasts up to 4 hours. In fact, 9 out 10 people would use Gaviscon Double Action again (based on a survey of 45 heartburn and indigestion sufferers compared to control.- Lasts up To 2 X Longer than Antacids - Unlike antacids, Gaviscon Double Action forms a raft, or layer, on the top of your stomach contents and to help keep stomach acid in your stomach, where it belongs.- Unique Formulation/combination for Dual Relief of Heartburn & Indigestion - Gaviscon Double Action neutralises excess stomach acid to help relieve discomfort. It also forms a protective barrier over the stomach contents to help soothe the burning sensation in your chest.- Suitable for Use in Pregnancy - Gaviscon products are suitable for use during pregnancy and whilst breastfeeding.