Aluminum hydroxide is an antacid available in over-the-counter (OTC) medicines that relieve heartburn, acid indigestion, sour stomach, and upset stomach. Aluminum hydroxide can be found in heartburn medicines that contain more than one antacid active ingredient. It can also be found in medicines that treat other symptoms, such as gas.

Aluminum hydroxide is approved by the U.S. Food and Drug Administration (FDA) and is safe and effective when used according to the Drug Facts label. Antacids containing aluminum hydroxide may interact with certain prescription drugs. If you are taking a prescription medicine, do not take an OTC medicine containing aluminum hydroxide without consulting a healthcare provider.

  • You have kidney disease, unless you are under the supervision of a healthcare provider.
  • Tamper-evident packaging features such as seals, locks, and films are not clear or seem broken.
  • Your symptoms last more than two weeks.
  • You take too much. Immediately contact your healthcare provider or the poison control national helpline at 800.222.1222.
  • Talk to a healthcare provider before giving an OTC medicine containing aluminum hydroxide to a child under the age of 12.
  • Click here for more information on giving OTCs to children.