Maalox Plus contains three different medicines: • The first two medicines are called dried aluminium hydroxide gel and magnesium hydroxide. They belong to a group of medicines called antacids • The other medicine is called simeticone. It belongs to a group of medicines called anti-foaming agents Maalox Plus is used for: • The relief of indigestion (dyspepsia) • Heartburn • Wind (flatulence) Maalox Plus works by lowering the amount of acid in your stomach. The anti-foaming agent in Maalox Plus helps to remove gas from your stomach.