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Medications and Drugs

Brand Names: Acid Gone, Acid Gone Extra Strength, Alenic Alka, Gaviscon Extra Strength, Gaviscon Extra Strength Liquid, Gaviscon Regular Strength Liquid, Genaton, Heartburn Antacid Extra Strength

Generic Name: alginic acid, aluminum hydroxide, and magnesium carbonate (Pronunciation: al JIN ik AS id, a LOO mi num hye DROX ide, mg NEE see um KAR boe nate)

What is alginic acid, aluminum hydroxide, and magnesium carbonate (Acid Gone, Acid Gone Extra Strength, Alenic Alka, Gaviscon Extra Strength, Gaviscon Extra Strength Liquid, Gaviscon Regular Strength Liquid, Genaton, Heartburn Antacid Extra Strength)?

Alginic acid is a natural carbohydrate that comes from algae in seaweed (kelp) and is used in many processed foods. It helps this medication create a foam barrier to coat the stomach.

Aluminum and magnesium are minerals that occur naturally and are used as antacids.

The combination of alginic acid, aluminum hydroxide, and magnesium carbonate is used to treat symptoms of stomach ulcers, gastroesophageal reflux disease (GERD), and other conditions caused by excess stomach acid. This medicine is also used to treat heartburn, upset stomach, sour stomach, or acid indigestion.

This medication may be used for other purposes not listed in this medication guide.

What are the possible side effects of alginic acid, aluminum hydroxide, and magnesium carbonate?

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.

Stop taking the medication and call your doctor at once if you have any of the following side effects. Some of these may be symptoms of your condition and not side effects of the medication.

  • severe stomach pain or constipation;
  • bloody or tarry stools, coughing up blood ;
  • swelling in your ankles or feet; or
  • worsening of your stomach condition.

Less serious side effects may include:

  • mild constipation or diarrhea;
  • nausea, mild stomach cramps; or
  • altered sense of taste.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

What is the most important information I should know about alginic acid, aluminum hydroxide, and magnesium carbonate?

Ask a doctor or pharmacist before taking this medication if you have kidney disease, kidney stones, severe constipation, or if you are dehydrated.

Avoid taking multivitamins, mineral supplements, or other medications (especially antacids) at the same time you take this medication. Antacids can make it harder for your body to absorb certain other drugs. Taking too many antacids together may cause you to take too much of a certain drug.

Call your doctor if your symptoms do not improve, or if they get worse while using this medication.

Stop taking this medication and call your doctor at once if you have severe stomach pain, severe constipation, swelling in your ankles or feet, blood in your stools, or if you cough up blood. Some of these may be symptoms of your condition and not side effects of the medication.



Report Problems to the Food and Drug Administration

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

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