Gaviscon Extra Chewable Tablets provide fast, soothing, and long lasting relief from the pain and discomfort of heartburn and acid indigestion. Gaviscon Extra contains sodium alginate and which forms a stronger, resilient raft over the stomach to prevent acid coming back up. Benefits of Gaviscon Extra Chewable Tablets Instant results. Lasts up to 2x longer than antacids. Suitable for use in pregnancy. Pack Size: 24 or 48 tablets Instructions How to Use Adults and children 12 years and over: Two to four tablets after meals and at bedtime, up to four times per day. Children under 12 years: Should be given only on medical advice. Warnings Caution in renal disease Caution if you suffer from abnormal sodium levels Side Effects No reported side effects Ingredients Contains: Sodium alginate 250mg Sodium bicarbonate 106.5mg Calcium carbonate 187.5mg Macrogol 20,000 Mannitol (E421) Copovidone Acesulfame K Aspartame (E951) Mint Flavour Carmoisine Lake (E122) Magnesium stearate Xylitol DC Sodium alginate 250mg Sodium bicarbonate 106.5mg Calcium carbonate 187.5mg