Aluminum Hydroxide is used to treat heartburn, sour stomach, and peptic ulcer pain, as well as to accelerate peptic ulcer healing. Aluminum is a mineral that is found in nature. Heartburn, upset stomach, sour stomach, or acid indigestion are all treated with this chemical. It belongs to the antacid family of medications. Aluminum Hydroxide is a drug that is used to treat and manage acid indigestion. In persons with specific renal disorders, this chemical is also used to lower phosphate levels. This is very effective and economical to use.