Rennie Peppermint Chewable Atacid Tablets can be your instant solution to heartburn, indigestion and acid reflux. It contains antacids, a combination of calcium carbonate and magnesium carbonate, which convert excess harmful acids to water and other natural harmless substances. The tablets are made with mouth refreshing peppermint flavor, which can be taken as a remedy to resolve upset stomach, acidity issues quickly. It also provides relief from discomfort, irritation and digestion problems.