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Aluminum Hydroxide

Related Brands*

Gaviscon, Gelusil, Maalox, Mylanta

Aluminum hydroxide is an antacid available in over-the-counter (OTC) medicines that relieves 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 also can be in medicines that not only treat heartburn, but other symptoms as well, 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 label directions. Antacids containing aluminum hydroxide may interact with certain prescription drugs. If you are taking a prescription medicine, do not take an OTC aluminum hydroxide antacid without checking with your doctor or other healthcare professional.

*Aluminum hydroxide may not be contained in all products sold under these brands. Please read the OTC Drug Facts label carefully. 

Tips for Medicines with Aluminum Hydroxide

When using aluminum hydroxide-containing medicines, it is important to know that:

  • You should never take more medicine or for a longer period of time than what the label says.
  • Certain heartburn medicines may also contain the active ingredient magnesium hydroxide. Check the label and speak with your doctor if you are on a magnesium-restricted diet.

Do not use if:
  • You have kidney disease, unless you are under the advice and supervision of a doctor.

Ask a healthcare professional before use if:

  • You are taking a prescription medicine.

Stop use and ask a doctor if:

  • Your symptoms last more than two weeks.
  • You take too much. Immediately contact a doctor or the poison control national helpline at 800.222.1222.

If you have questions about any of the medicines you are taking or if you have any unexpected side effects, talk to a healthcare professional. And of course, keep all medicines out of the reach and sight of children.

Tips for Parents

  • Talk to a healthcare professional before giving an OTC medicine containing aluminum hydroxide to a child under the age of 12.

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