Containing antacid to neutralise excess stomach acid, Rennie Spearmint tablets work fast to relieve the symptoms of heartburn and indigestion.

Rennie Spearmint tablets contain two antacids called calcium carbonate and magnesium carbonate which neutralise excess stomach acid by turning it into water & other natural substances. Calcium carbonate acts directly in the oesophagus, as well as the stomach, and both antracids are then eliminated by your body.