Antacid
Brand of Magnesium Trisilicate; Calcium Carbonate
Last reviewed June 2026
Who is this for?
This is an antacid tablet that combines magnesium trisilicate and calcium carbonate — two ingredients that work together to neutralize excess stomach acid and coat the stomach lining to give you relief from heartburn and ulcer pain.
Neutralizes gastric acid through direct chemical reaction with hydrochloric acid, forming water-soluble salts and carbon dioxide, thereby raising intragastric pH and relieving acidic symptoms. Additionally, provides a protective mucosal coating that buffers residual acid and reduces irritation of the gastric lining.
Available Over The Counter
Get this from any pharmacy or chemist — no prescription needed.
Explore this drug
Chew 1 to 2 tablets when you feel heartburn or stomach discomfort, usually between meals and at bedtime. You can take it up to 3 or 4 times a day. Chew the tablets well before swallowing, and you can drink a little water afterwards. It is best taken between meals, not with food.
This medicine is usually taken only when you have symptoms like heartburn or stomach pain, so there is no strict dosing schedule. If your doctor told you to take it regularly and you miss a dose, take it as soon as you remember — but skip it if it is almost time for the next dose. Do not double up.
Do not use this as a long-term solution for stomach pain — if your symptoms last more than 2 weeks, see a doctor as it could be a sign of something more serious like a stomach ulcer. Buy from a reputable pharmacy, not from roadside sellers or open markets where storage conditions may be poor. The brand De-Shalom Compound Magnesium Trisilicate Tablet is one of the locally available options — always check the expiry date before use.
This antacid can reduce how well other medicines work if taken at the same time — especially antibiotics like tetracycline and ciprofloxacin, so take them at least 2 hours apart. It can also affect iron tablets and some blood pressure drugs. If you are taking any other medication, space them at least 1-2 hours before or after this antacid.
Check your specific combination
Is it safe to take Magnesium with your other drugs?
Consult your doctor before using this medicine during pregnancy or breastfeeding — occasional use may be acceptable, but regular or high-dose use is not recommended without medical advice.
Store in a cool, dry place away from direct sunlight and heat — Nigerian weather can be very hot, so do not leave it on a windowsill or inside a hot car. Keep the container tightly closed to protect from humidity, and always keep it out of 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
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.
Genuine packaging for De-Shalom Compound Magnesium Trisilicate Tablet
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NAFDAC Number
B4-1764
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