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Aluminum Hydroxide


Related terms
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    Related terms
    • Brand Names: U.S.: ALternaGel® [OTC];Dermagran® [OTC]
    • Brand Names: Canada: Amphojel®;Basaljel®

    • It is used to lower high phosphate levels.
    • It is used to treat heartburn and upset stomach.
    • Antacids lower stomach acid.
    • Aluminum binds phosphate in the GI (gastrointestinal) tract and gets rid of it.


    How to take

    • Take 1 to 3 hours after meals as an antacid.
    • There is a liquid (suspension) if you cannot swallow pills. Shake well before use.
    • Those who have feeding tubes may also use the liquid. Flush the feeding tube before and after this drug is given.
    • Drink lots of noncaffeine liquids unless told to drink less liquid by your doctor.

    Missed Dose

    • Take a missed dose as soon as you think about it.
    • If it is close to the time for your next dose, skip the missed dose and go back to your normal time.
    • Many times this drug is taken on an as needed basis.


    • Store at room temperature.
    • Protect capsules from water. Do not store in a bathroom or kitchen.



    • Sometimes drugs are not safe when you take them with certain other drugs. Taking them together can cause bad side effects. This is one of those drugs. Be sure to talk to your doctor about all the drugs you take.


    • If you have an allergy to aluminum or any other part of this drug.
    • Tell your doctor if you are allergic to any drugs. Make sure to tell about the allergy and what signs you had. This includes telling about rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, or throat; or any other signs.


    • Keep a list of all your drugs (prescription, natural products, vitamins, OTC) with you. Give this list to your doctor.
    • Check all drugs you are taking with your doctor. This drug may not mix well with some other drugs.
    • Do not take other drugs within 1 hour of this drug.
    • Tell your doctor if you are pregnant or plan on getting pregnant.
    • Tell your doctor if you are breast-feeding.

    Side Effects

    • Bad taste in your mouth. This most often goes back to normal.
    • Hard stools (constipation). Drinking more liquids, working out, or adding fiber to your diet may help. Talk with your doctor about a stool softener or laxative.


    • Change in the health problem being treated. Is it better, worse, or about the same?
    • Follow up with the doctor.

    Contact a healthcare provider

    • If you think there was an overdose, call your local poison control center or ER right away.
    • Signs of a very bad reaction to the drug. These include wheezing; chest tightness; fever; itching; bad cough; blue or gray skin color; seizures; or swelling of face, lips, tongue, or throat.
    • Very upset stomach or throwing up.
    • Very hard stools (constipation).
    • Any bruising or bleeding.
    • Any rash.
    • Side effect or health problem is not better or you are feeling worse.

    General Statements

    • If you have a very bad allergy, wear an allergy ID at all times.
    • Do not share your drugs with others and do not take anyone else's drugs.
    • Keep all drugs out of the reach of children and pets.
    • Most drugs may be thrown away in household trash after mixing with coffee grounds or kitty litter and sealing in a plastic bag.
    • In Canada, take any unused drugs to the pharmacy. Also, visit to learn about the right way to get rid of unused drugs.
    • Keep a list of all your drugs (prescription, natural products, vitamins, OTC) with you. Give this list to your doctor.
    • Call your doctor for help with any side effects. If in the U.S., you may also call the FDA at 1-800-FDA-1088 or if in Canada, you may also call Health Canada's Vigilance Program at 1-866-234-2345.
    • Talk with the doctor before starting any new drug, including OTC, natural products, or vitamins.

    Author information
    • Copyright © 1978-2013 Lexi-Comp Inc. All rights reserved.

    Copyright © 2011 Natural Standard (

    The information in this monograph is intended for informational purposes only, and is meant to help users better understand health concerns. Information is based on review of scientific research data, historical practice patterns, and clinical experience. This information should not be interpreted as specific medical advice. Users should consult with a qualified healthcare provider for specific questions regarding therapies, diagnosis and/or health conditions, prior to making therapeutic decisions.

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