Treat your symptoms instantly with Gaviscon Double Action and get fast dual relief from heartburn and indigestion. Gaviscon was the first remedy of its kind available in Malaysia. It contains sodium alginate, which is naturally derived. It is classed as an “alginate” which means that it forms a “protective layer” over the stomach contents which helps to prevent acid coming back up into the oesophagus (food pipe). As such, it is fast actingand has asoothing effect, lasting up to four hou