Antacid and Anti-reflux agent
Last reviewed July 2026
Who is this for?
This is a combination antacid and reflux medicine. The calcium carbonate and sodium bicarbonate neutralize excess stomach acid, while the sodium alginate forms a protective raft that floats on top of your stomach contents to stop acid from coming back up into your throat. It is commonly sold as Gaviscon in Nigeria.
Neutralizes gastric acid through chemical reaction (calcium carbonate and sodium bicarbonate) while sodium alginate forms a protective gel layer on the gastric mucosa, reducing acid reflux and providing prolonged relief from acid-related symptoms.
Heartburn, acid reflux (when acid rises from your stomach to your chest and throat), indigestion, stomach burning sensation, sour belching
Available Over The Counter
Get this from any pharmacy or chemist: no prescription needed.
Explore this drug
This medicine is taken only when you feel symptoms like heartburn or acid reflux, so there is no strict dosing schedule to miss. Simply take it the next time you experience symptoms, but do not double up.
Buy only from reputable pharmacies, not from roadside vendors or bus hawkers, as fake versions exist. This medicine treats symptoms but does not cure the underlying problem, so if your heartburn continues for more than 2 weeks, please see a doctor. Do not use it as a substitute for proper meals, as eating on time helps reduce acid problems.
This medicine can reduce how well other drugs are absorbed, so do not take it within 2 hours of taking antibiotics like ciprofloxacin or tetracycline. It may also reduce the effectiveness of iron supplements and some heart medications. If you are on any regular medication, take this medicine at least 2 hours apart from them.
Check your specific combination
Is it safe to take Calcium with your other drugs?
Gaviscon is generally considered safe during pregnancy and breastfeeding for short-term use, but it is best to consult your doctor or pharmacist before using it, especially if you take it regularly.
Store at room temperature in a cool, dry place away from direct sunlight and heat. Nigeria can be very hot, so do not leave it inside a parked car or near a window. Keep the bottle tightly closed and out of the reach of children.
For information only: not medical advice. Always talk to a doctor or pharmacist before changing your medication.
Names this drug is sold under, especially in Nigerian and West African pharmacies
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Counterfeit Drug Warning
Fake drugs are a serious problem in Nigeria. Always buy from a registered pharmacy. If the packaging looks different from what is described above, do not use it.