Maalox Plus Chewable Tablets (40). Maalox Plus Chewable Tablets contain three different medicines:. The first two medicines are called hydrated aluminium oxide, and magnesium hydroxide. They belong to a group of medicines called antacids.. The other medicine is called dimeticone (as simeticone).. It belongs to a group of medicines called antifoaming agents.. Maalox Plus Chewable Tablets are used for:. The relief of indigestion (dyspepsia). Heartburn. Wind (flatulence). Maalox Plus Chewable Tablets work by lowering the amount of acid in your stomach. The antifoaming agent in Maalox Plus Chewable Tablets helps to remove gas from your stomach.