What is this product?Each 10 ml contains sodium alginate 1000 mg and potassium hydrogen carbonate 200 mg.What is this medicine and what is it used for? Gaviscon Advance Aniseed flavour Oral Suspension belongs to a group of medicines called 'reflux suppressants'. This product forms a protective layer that floats on top of the stomach contents. This layer prevents reflux and keeps the stomach contents away from the lining of the food pipe to relieve the symptoms of heartburn and acid indigestion. It can also be used to relieve the symptoms of conditions such as hiatus hernia (protrusion of muscle through a muscle wall), reflux oesophagitis (inflamed food pipe) and symptoms of hoarseness and other voice disorders, sore throat and cough associated with reflux. It can also be taken to control heartbum symptoms which may occur when taking, or following withdrawal of, medication to reduce stomach acid such as Proton Pump Inhibitors (PPI's) or H2 Antagonists.Contents of the pack and other information Each 10 ml of oral suspension contains 1000 mg sodium alginate and 200 mg potassium hydrogen carbonate as the active ingredients. The other ingredients are calcium carbonate, carbomer, methyl (E218) and propyl (E216) parahydroxybenzoates, benzyl alcohol (present in fennel flavour), sodium saccharin, sodium hydroxide, aniseed flavour derived from fennel and purified water. This product does not contain sugar or gluten. This medicine is available in bottles of 80ml, 100ml, 125ml, 140ml, 150ml, 180ml, 200ml, 250ml and 300ml.