Maalox Plus tablets contains three active ingredients Dried aluminium hydroxide Gel, Magnesium hydroxide and Simethicone, which work together to help relieve the discomfort of trapped wind and bloating. Maalox� Plus is used to treat the symptoms of stomach acidity such as stomach upset, heartburn, and acid indigestion. It is also used to relieve symptoms of extra gas such as belching, bloating, and feelings of pressure/discomfort in the stomach/gut.