Tricaine MPS Gel is used to treat acidity, heartburn, indigestion, gastritis (inflammation of the stomach), stomach ulcers, and bloating. It works by neutralising excess stomach acid, relieving pain due to ulcers or acidic injury, and preventing the formation of gas. In some cases, this medicine may cause side effects such as constipation and diarrhoea. Let the doctor know if you are pregnant or breastfeeding, taking any other medication, or have any pre-existing medical conditions.