Gaviscon works by forming a raft (a protective barrier) on top of the stomach contents soon after it has made contact with the stomach acid. The raft acts as a strong physical barrier and helps to keep stomach contents including acid in the stomach where they belong and not in the food pipe where they hurt. It gives soothing relief in 3 minutes and lasts up to 4 hours*.
* The effect on individuals may vary
** Only applicable to Gaviscon Liquid and Double Action Liquid