Jul 24, 2022

Generic name:  aluminum hydroxide and magnesium trisilicate  [ a-LOO-mi-num-HYE-drox-IDE-AND-mag-NEE-zee-um-TRYE-sil-i-kate ]
Drug class:  Antacids

What is Gaviscon?

Gaviscon are  antacids  that can lower the acidity of stomach acid.

Gaviscon is a combination medicine that is used to treat  heartburn , acid  indigestion , sour stomach, or  upset stomach .

.Gaviscon is also used to provide temporary relief from heartburn and acid indigestion caused by  acid reflux .

Gaviscon may also be used for purposes not listed in this medication guide.


Follow all directions on your medicine label and package. Tell each of your healthcare providers about all your medical conditions,  allergies , and all medicines you use.

Before taking this medicine

Ask a doctor or pharmacist if Gaviscon is safe to use if:

  • you have a  peptic ulcer ;
  • you have trouble swallowing;
  • you have kidney disease; or
  • you are on a low-salt diet.

Ask a doctor before using this medicine if you are pregnant or breastfeeding.

How should I take Gaviscon?

Use exactly as directed on the label, or as prescribed by your doctor.

You must chew the chewable tablet before you swallow it. Then drink about 4 ounces of water or other liquid.

Do not take more than 16 tablets in 24 hours.

Call your doctor if your symptoms do not improve, or if you have acid indigestion more than 2 times per week.

Do not take this medicine for longer than 2 weeks unless your doctor tells you to.

Store at room temperature away from moisture and heat.

What happens if I miss a dose?

Since Gaviscon is used when needed, you may not be on a dosing schedule. Skip any missed dose if it’s almost time for your next dose. Do not use two doses at one time.

What happens if I overdose?

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.

What should I avoid while taking Gaviscon?

Ask a doctor or pharmacist before taking Gaviscon if you take other medicines regularly. Gaviscon can make it harder for your body to absorb other medicines you take by mouth.

Gaviscon side effects

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

Common side effects may include  diarrhea .

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.

Gaviscon Regular Strength Tablets side effects  (more detail)

What other drugs will affect Gaviscon?

Other drugs may affect Gaviscon, including prescription and over-the-counter medicines,  vitamins , and  herbal products . Tell your doctor about all your current medicines and any medicine you start or stop using.

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