Aluminum hydroxide and magnesium trisilicate are antacids that can lower the acidity of stomach acid.

Aluminum hydroxide and magnesium trisilicate is a combination medicine that is used to treat heartburn, acid indigestion, sour stomach, or upset stomach.

.Aluminum hydroxide and magnesium trisilicate is also used to provide temporary relief from heartburn and acid indigestion caused by acid reflux.

Aluminum hydroxide and magnesium trisilicate 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.

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.

Ask a doctor or pharmacist if aluminum hydroxide and magnesium trisilicate 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.

Since aluminum hydroxide and magnesium trisilicate 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.

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

Ask a doctor or pharmacist before taking aluminum hydroxide and magnesium trisilicate if you take other medicines regularly. Aluminum hydroxide and magnesium trisilicate can make it harder for your body to absorb other medicines you take by mouth.

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.

Other drugs may affect aluminum hydroxide and magnesium trisilicate, 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.