Antacids are used to treat reflux, indigestion and heartburn.
Many types of antacids are available and they usually contain a few different medicines.
Aluminium hydroxide, calcium carbonate, magnesium (carbonate or hydroxide or trisilicate) and bicarbonate (sodium or potassium) are all antacids. They reduce stomach acid.
Some antacids also contain alginate or simeticone. Alginate forms a barrier over your stomach acid. Simeticone reduces bloating by breaking down gas bubbles in your stomach.
Take antacids as directed.
They usually come as either chewable tablets or liquid.
Chew the tablets well before swallowing.
Shake the liquid well before each dose.
Some medicines available without a prescription may react with antacids including:
Tell your pharmacist or doctor about all medicines or treatments that you may be taking, including vitamins, herbal products or recreational drugs.
Antacids are unlikely to cause any side effects.
|Side Effects||Recommended action|
|Can happen with antacids containing magnesium - tell your doctor if troublesome|
If you notice any other effects, discuss them with your doctor or pharmacist.
This leaflet contains important, but not all, information about this medicine.
Prepared by the PILs Committee at Christchurch Hospital, Canterbury District Health Board, New Zealand. June 2019
For more general information about this sheet and its contents, see: What does a My Medicines sheet cover?
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My Medicines Patient Information Leaflets (PILs) contain important, but not all, information about the medicines they describe.
For more information about the sheets, see: What does a My Medicines sheet cover?
My Medicines is developed by a team at the Canterbury District Health Board. Our team is made up of doctors, pharmacists, and a non-medical person to help us keep to plain language. We also discuss our information with specialist health professionals or groups when needed