Generic Name: Maalox Brand Name(s): Generics only. No brands available.


What is Maalox® (Aluminum Hydroxide/Magnesium Hydroxide) used for?

Maalox® is commonly used for treating acid indigestion, heartburn, and sour stomach. It may also be used for other conditions as determined by your doctor.

How should I take Maalox® (Aluminum Hydroxide/Magnesium Hydroxide)?

It comes as a tablet to take by mouth, usually after meals and at bedtime as needed.

  • If you are taking the chewable tablets, chew thoroughly before swallowing, then drink a full glass of water.
  • If you are using the liquid form of this medication, shake the bottle well before pouring each dose.

How do I store Maalox® (Aluminum Hydroxide/Magnesium Hydroxide)?

Maalox® is best stored at room temperature away from direct light and moisture. To prevent drug damage, you should not store Maalox® in the bathroom or the freezer. There may be different brands of Maalox® that may have different storage needs. It is important to always check the product package for instructions on storage, or ask your pharmacist. For safety, you should keep all medicines away from children and pets.

You should not flush Maalox® down the toilet or pour them into a drain unless instructed to do so. It is important to properly discard this product when it is expired or no longer needed. Consult your pharmacist for more details about how to safely discard your product.

Precautions & warnings

What should I know before using Maalox® (Aluminum Hydroxide/Magnesium Hydroxide)?

Consult with your doctor or pharmacist, if:

  • You are pregnant or breastfeeding. This is because, while you are expecting or feeding a baby, you should only take medicines on the recommendation of a doctor.
  • You are taking any other medicines. This includes any medicines you are taking which are available to buy without a prescription, such as herbal and complementary medicines.
  • You have allergy with any ingredients of Maalox® or other medications.
  • You are also taking citrate salts (found in some calcium supplements, antacids, and laxatives).

Is it safe during pregnancy or breastfeeding?

There are no adequate studies in women for determining risk when using Maalox® during pregnancy or while breastfeeding. Please always consult with your doctor to weigh the potential benefits and risks before taking this medication. Maalox® is pregnancy risk category C, according to the US Food and Drug Administration (FDA).

FDA pregnancy risk category reference below:

  • A=No risk;
  • B=No risk in some studies;
  • C=There may be some risk;
  • D=Positive evidence of risk;
  • X=Contraindicated;
  • N=Unknown.

Side effects

What side effects can occur from Maalox® (Aluminum Hydroxide/Magnesium Hydroxide)?

Common side effects including nausea, constipation, diarrhea or a headache.

Not everyone experiences these side effects. There may be some side effects not listed above. If you have any concerns about a side-effect, please consult your doctor or pharmacist.


What drugs may interact with Maalox® (Aluminum Hydroxide/Magnesium Hydroxide)?

Maalox® may interact with other drugs that you are currently taking, which can change how your drug works or increase your risk for serious side effects. To avoid any potential drug interactions, you should keep a list of all the drugs you are using (including prescription drugs, nonprescription drugs, and herbal products) and share it with your doctor and pharmacist. For your safety, do not start, stop, or change the dosage of any drugs without your doctor’s approval.

Some products that may interact with this drug include:

  • Phosphate supplements (such as potassium phosphate), sodium polystyrene sulfonate.
  • Digoxin, iron, pazopanib, tetracycline antibiotics, quinolone antibiotics such as ciprofloxacin), preventing them from being fully absorbed by your body.

Does food or alcohol interact with Maalox® (Aluminum Hydroxide/Magnesium Hydroxide)?

Maalox® may interact with food or alcohol by altering the way the drug works or increase the risk for serious side effects. Please discuss with your doctor or pharmacist any potential food or alcohol interactions before using this drug.

What health conditions may interact with Maalox® (Aluminum Hydroxide/Magnesium Hydroxide)?

Maalox® may interact with your health condition. This interaction may worsen your health condition or alter the way the drug works. It is important to always let your doctor and pharmacist know all the health conditions you currently have.

  • Alzheimer disease;
  • Appendicitis;
  • Diarrhea;
  • A stomach blockage;
  • Kidney problems;
  • An ileostomy.


The information provided is not a substitute for any medical advice. You should ALWAYS consult with your doctor or pharmacist before using this medication.

What is the dose of Maalox® (Aluminum Hydroxide/Magnesium Hydroxide) for an adult?

Chewtab: 2-4 tab

Suspension: 10-20 mL orally between meals or every night at bedtime.

What is the dose of Maalox® (Aluminum Hydroxide/Magnesium Hydroxide) for a child?

Suspension: > 12 years old, 10-20 mL orally between meals or every night at bedtime.

How is Maalox® (Aluminum Hydroxide / Magnesium Hydroxide) available?

Maalox® is available in the following dosage forms and strengths:

  • Chewable tablets;
  • Suspension.

What should I do in case of an emergency or overdose?

In case of an emergency or an overdose, call your local emergency services (115) or go to your nearest emergency room.

What should I do if I miss a dose?

If you miss a dose of medication, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and take your regular dose as scheduled. Do not take a double dose.

Hello Health Group does not provide medical advice, diagnosis or treatment.

Review Date: October 15, 2016 | Last Modified: January 4, 2017

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