Rennie 750mg Medicated Chewing Gum is a sugar-free, mint-flavoured antacid gum used to relieve the symptoms of heartburn, acid indigestion and trapped wind. Each piece contains calcium carbonate, an antacid that helps neutralise excess stomach acid. The gum format allows it to be taken when out and about. This pack contains 10 pieces. It is for adults and children over 12 years. If symptoms persist for more than 14 days, speak to your pharmacist or doctor. If you are pregnant or breastfeeding, speak to your pharmacist before use. Always read the label and the patient information leaflet before use.