Fast Acting Antacid Oral

In Depth

Generic Name: CALCIUM CARBONATE ANTACID - ORAL
Pronounced: (KAL-see-um KAR-buh-nate)

Fast Acting Antacid Oral Side Effects

Constipation, gas, and burping may occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly.

If your doctor has directed you to use this medication, remember that he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.

Tell your doctor immediately if any of these unlikely but serious side effects occur:

loss of appetite
nausea/vomiting
unusual weight loss
bone/muscle pain
mental/mood changes (e.g., confusion)
headache
increased thirst/urination
unusual weakness/tiredness

Tell your doctor immediately if any of this rare but very serious side effects occur:

change in the amount of urine

A very serious allergic reaction to this drug is rare. However, seek immediate medical attention if you notice any symptoms of a serious allergic reaction, including:

rash
itching/swelling (especially of the face/tongue/throat)
severe dizziness
trouble breathing

This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.

In the US -

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.

Fast Acting Antacid Oral Precautions

Before taking calcium carbonate, tell your doctor or pharmacist if you are allergic to it; or to milk or dairy (found in certain brands); or if you have any other allergies.

This product should not be used if you have certain medical conditions. Before using this product, consult your doctor or pharmacist if you have:

high calcium levels (hypercalcemia)
stomach/intestinal blockage

If you have any of the following health problems, consult your doctor or pharmacist before using this product:

kidney disease (e.g., kidney stones)

Some products may contain aspartame. If you have phenylketonuria (PKU) or any other condition that requires you to restrict your intake of aspartame (or phenylalanine), consult your doctor or pharmacist about using this drug safely.

Tell your doctor if you are pregnant before using this medication.

This medication passes into breast milk. Consult your doctor before breast-feeding.