Maalox Plus Syrup for Heartburn and Acidity with Lemon Flavor, Maalox plus Liquid is a component of antacids, which have effective results in reducing heartburn and acidity after eating, Maalox is available in a distinctive lemon flavor, Maalox belongs to antacids, as it is composed of aluminum hydroxide and magnesium hydroxide, which work to neutralize acids in the stomach, which works to reduce acidity in the stomach and limit heartburn in the mouth of the stomach.