Aluminum Hydroxide and Magnesium Carbonate are antacids that work quickly to lower the acid in the stomach.

Symptomatic treatment of acid indigestion, heartburn, and sour stomach. It may also be used for other conditions as determined by your doctor.

Do NOT use this product if:

  • you are allergic to any of its ingredients
  • you are also taking citrate salts (found in some calcium supplements, antacids, and laxatives)

Check with your doctor if constipation or diarrhea persist or become bothersome.

Seek medical attention right away if any of these SEVERE side effects occur:

  • Severe allergic reactions
    • Rash
    • Hives
    • Itching
    • Difficulty breathing
    • Tightness in the chest
    • Swelling of the mouth, face, lips, or tongue
  • Loss of appetite
  • Muscle weakness
  • Nausea
  • Slow reflexes
  • Vomiting


Inform your doctor or pharmacist if you have any medical conditions, especially if any of the following apply to you:

  • if you are pregnant, planning to become pregnant, or are breast-feeding
  • if you are taking any prescription or nonprescription medicine, herbal preparation, or dietary supplement
  • if you have allergies to medicines, foods, or other substances
  • if you have Alzheimer’s disease, appendicitis, diarrhea, a stomach blockage, kidney problems, or an ileostomy (a surgical opening in the belly)
  • if you have recently had stomach bleeding



  • Antibiotics
  • Delavirdine
  • Gabapentin
  • Isoniazid
  • Medicines for fungal infections like itraconazole and ketoconazole
  • Medicines for osteoporosis like alendronate, etidronate, risedronate and tiludronate
  • Medicines for seizures like ethotoin and phenytoin
  • Methenamine
  • Phenothiazines like chlorpromazine, mesoridazine, prochlorperazine, thioridazine
  • Rosuvastatin
  • Sotalol
  • Tacrolimus
  • Thyroid hormones like levothyroxine
  • Vitamin D
  • Cation exchange resins (eg, sodium polystyrene sulfonate) and citrate salts (found in some calcium supplements, antacids, and laxatives)
  • Anticoagulants (eg, warfarin)
  • Quinidine
  • Sulfonylureas (e.g., glyburide)
  • Angiotensin-converting enzyme (ACE) inhibitors (e.g., enalapril)
  • Beta-blockers (e.g., propranolol)
  • Corticosteroids (e.g., hydrocortisone)
  • Cyclosporine
  • Digoxin

This may not be a complete list of all interactions that may occur. Ask your health care provider if aluminum/magnesium carbonate chewable tablets may interact with other medicines that you take. Check with your health care provider before you start, stop, or change the dose of any medicine.

Overdose may cause severe diarrhea. Seek emergency medical attention or call the hospital immediately.

Available brand:

  • Maalox (Sanofi-Aventis)

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