Proton Pump Inhibitor (Stomach Acid Reducer)
Brand of Esomeprazole
Last reviewed June 2026
Who is this for?
Esomeprazole is a drug that reduces the amount of acid your stomach produces by blocking the tiny pumps in your stomach wall that release acid. It belongs to a group called proton pump inhibitors (PPIs) and helps your stomach and food pipe heal from acid damage.
Inhibits the H+/K+-ATPase proton pump on gastric parietal cells, irreversibly blocking the final step of gastric acid secretion and reducing intragastric pH. This suppresses acid-related damage to the gastrointestinal mucosa and creates an optimal environment for H. pylori eradication when used with antimicrobial agents.
Prescription Required
You need a doctor's prescription to buy this drug.
Explore this drug
For most stomach acid problems, take one 20 mg or 40 mg capsule/tablet once a day, usually in the morning before eating — at least 30 minutes to 1 hour before your first meal. Swallow it whole with water; do not crush or chew. Your doctor will tell you whether to use 20 mg or 40 mg and for how long, usually 4 to 8 weeks depending on the condition.
If you forget to take your dose, take it as soon as you remember. But if it is almost time for your next dose, just skip the missed one and continue your normal schedule. Do not take two doses at once to make up for it.
Buy only from reputable pharmacies — brands like Nexium, Esop-40, Esorest, Esoz-20, or Stulcer are available in Nigeria; avoid buying loose or unbranded capsules from roadside sellers. Do not use esomeprazole for long periods (more than 8 weeks) without a doctor's guidance, as prolonged use can weaken your bones and lower important minerals like magnesium in your body. If your stomach symptoms do not improve after 2 weeks of use, see a doctor — it could be something more serious that needs proper investigation.
Esomeprazole can reduce the effectiveness of clopidogrel (a blood thinner used after heart problems) — avoid using them together. It can increase the levels of diazepam (Valium) and methotrexate in your body, which may cause more side effects. If you take antifungal medicines like ketoconazole or itraconazole, esomeprazole may reduce how well they work because these drugs need stomach acid to be absorbed.
Check your specific combination
Is it safe to take Esomeprazole with your other drugs?
Consult your doctor before taking esomeprazole if you are pregnant or breastfeeding — it should only be used if your doctor decides the benefit outweighs the risk.
Store in a cool, dry place away from direct sunlight and heat — Nigerian weather can be hot, so avoid leaving it in your car or near a window. Keep the medicine in its original packaging and far from the reach of children. Do not store in humid areas like the bathroom.
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 Stulcer 40 mg Tablets
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NAFDAC Number
B4-8184
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