- Extra Strenght Formula - Gaviscon Advance has double the concentration of sodium alginate of Gaviscon Original so that it forms a strong and resilient raft. This raft forms a protective barrier over the stomach contents to help soothe the burning sensation in your chest. - Gets to Work Instantly - Gaviscon Advance formulation gets to work in seconds to create a protective barrier that lasts up to 4 hours. - Suitable for Use in Pregnancy - Gaviscon products are suitable for use during pregnancy and whilst breastfeeding. Medicines can harm your unborn child, Always speak to doctor or pharmacist before using medicines in pregnancy. - 40 Years of Gaviscon - For over 40 years, Gaviscon has helped to provide millions of people with fast, effective heartburn and indigestion relief. Gaviscon Advance Oral Suspension brings fast, soothing and extra strenght relief for up to 4 hours from heartburn, indigestion and acid reflux. It gets to work in two different ways: Neutralising excess stomach acid to help relieve discomfort and by forming a protective barrier over the stomach contents to help soothe burning sensation in your chest so, for symptoms of heartburn or indigestion Gaviscon Advance can help provide fast, soothing relief. You can take this product if you are pregnant or breast-feeding. Gaviscon Advance Oral Suspension for heartburn and indigestion. Medicines can affect the unborn baby. Always talk to your doctor or pharmacist before taking any medicine during pregnancy.If symptoms are severe or prolonged you should consult a doctor or pharmacist. Always read the label. RB-M-30605