Gaviscon original range works by forming a raft over stomach contents which helps to prevent the stomach contents including acid from flowing back up into the esophagus (food pipe), relieving heartburn symptoms.

Gaviscon Double Action works in two ways to relieve both heartburn and indigestion.

1) Quickly neutralises excess stomach acid.

2) Forms a raft over the stomach contents which helps to prevent acid from flowing back up into the esophagus (food pipe). See how Double Action works.