Magnesium trisilicate works by increasing the pH of gastric juice via a neutralisation reaction. It also precipitates colloidal silica, which can coat gastrointestinal mucosa conferring further protection.

Application

ALUMINUM HYDROXIDE; MAGNESIUM TRISILICATE (a LOO mi num hye DROX ide; mag NEE zee um trye SILL i kate) is an antacid. It is used to relieve the symptoms of indigestion, heartburn, or gastroesophageal reflux disorder (GERD).