Gaviscon Double Action Tablets bring long lasting relief from the pain and discomfort of heartburn and acid indigestion. They get to work in two different ways: Neutralising excess stomach acid to relieve pain and discomfort (white layer) Forming a protective barrier over the stomach contents to soothe the burning pain in your chest (pink layer) Approved by Anju Gill -Pharmacist on the 23/04/2021. For more information, view our medical team. Please note that results may vary.