Fast soothing reliefheartburn amp indigestionlong lastinggaviscon peppermint liquid relief brings fast soothing and long lasting relief from the pain and discomfort of heartburn and acid indigestion it can be used to treat gastric reflux a condition in which the acid stomach contents flow upwards into the foodpipe and flatulence caused by gastric reflux it belongs to a group of medicines called 39reflux suppressants39this product is sugar free