Here's why:

* Neutralizes Stomach Acid: Aluminum hydroxide reacts with stomach acid (hydrochloric acid) to form aluminum chloride and water. This reaction neutralizes the acid, reducing heartburn, indigestion, and other symptoms of acid reflux.

* Common Ingredient: You'll often find aluminum hydroxide in over-the-counter antacids like Maalox, Mylanta, and Amphojel.

Let me know if you have any other questions!