Gaviscon Advance Chewable Tablets can be used to treat symptoms of heartburn, acid reflux and indigestion. Gaviscon Advance can be used to treat symptoms that occur after meals or during pregnancy.You Must Be Aged Over 18 Years to Purchase This Product. Maximum order quantity of 8 packs per order.Adults and children over 12 years:Take one or two tablets after meals and at bedtime, or as directed by your doctorChew thoroughly before swallowingIf symptoms do not improve after seven days, consult your doctorEach chewable tablet contains: Sodium Alginate 500mg, Potassium Bicarbonate 100mg