Drug Class: Proton Pump Inhibitor (PPI) | Form: Oral Delayed-Release Capsule | Prescription Status: Prescription Only (Rx) — DRAP Registered
What is Eskem 40mg Capsule?
Eskem 40mg contains Esomeprazole — a second-generation proton pump inhibitor (PPI) and one of the most potent and widely prescribed acid-suppressing medicines available globally. It works by irreversibly blocking the hydrogen-potassium ATPase enzyme — the proton pump — in the stomach's acid-producing parietal cells, dramatically reducing the amount of gastric acid produced throughout the day and night. Esomeprazole is the S-isomer of Omeprazole — a more selective and chemically stable form that produces stronger and more consistent acid suppression with less inter-patient variability than its predecessor. Eskem 40mg provides powerful sustained acid reduction — healing damaged oesophageal and stomach tissue, relieving the burning discomfort of acid reflux (سینے کی جلن), protecting the stomach lining from further acid-related damage, and creating the optimal gastric environment for H. pylori eradication antibiotics to work effectively. It is taken once daily before the first meal of the day for most indications and must be used under medical supervision for the appropriate duration.
What is Eskem 40mg Used For?
- Gastroesophageal reflux disease (GERD) — treatment and long-term management of acid reflux causing heartburn and acid regurgitation (معدے کا تیزاب اوپر آنا)
- Erosive oesophagitis — healing of acid-induced inflammation and erosions in the oesophagus lining (غذائی نالی کی سوزش)
- NSAID-induced ulcer prevention — protecting the stomach lining in patients requiring long-term NSAID therapy such as Ibuprofen, Diclofenac, or Aspirin
- Peptic ulcer disease — treatment of stomach and duodenal ulcers including those caused by H. pylori infection or NSAID use (معدے کا السر)
- H. pylori eradication — used in combination with antibiotics to eliminate H. pylori bacteria causing recurrent peptic ulcers
- Zollinger-Ellison syndrome — management of this rare condition causing excessive and uncontrolled stomach acid production from gastrin-secreting tumours
- Maintenance therapy — long-term prevention of relapse of healed erosive oesophagitis and GERD symptoms
How Does Eskem 40mg Work?
Proton Pump Inhibition: The stomach produces acid through specialised parietal cells located in the stomach lining. Inside these cells, a protein called hydrogen-potassium ATPase — the proton pump — actively transports hydrogen ions (protons) into the stomach, creating the highly acidic environment needed for digestion. Esomeprazole is absorbed from the small intestine into the bloodstream, selectively concentrated in the acidic secretory canaliculi of parietal cells, and converted into its active sulphenamide form — which irreversibly binds to and permanently blocks the proton pump. This stops hydrogen ion secretion directly at the final and most critical step of acid production — reducing gastric acid output by up to 90% throughout the day from a single morning dose.
Why Esomeprazole Outperforms Omeprazole: As the pure S-isomer of Omeprazole, Esomeprazole has more favourable pharmacokinetics — it is metabolised more slowly in the liver and achieves higher and more consistent plasma concentrations than the racemic Omeprazole mixture. This means more Esomeprazole reaches the parietal cell proton pumps — producing stronger, more sustained, and less variable acid suppression across different patients and particularly in rapid metabolisers of Omeprazole.
Sustained Acid Suppression and Tissue Healing: Because Esomeprazole irreversibly inactivates each proton pump it binds to, acid suppression persists for 24 hours beyond the drug's plasma half-life. New acid secretion resumes only as parietal cells synthesise replacement proton pumps — typically over 3 to 5 days — explaining why full therapeutic effect builds progressively with the first few doses. By maintaining gastric pH above 4 for the majority of the day, Eskem 40mg creates conditions in which acid-damaged oesophageal and gastric tissue can heal effectively, ulcers can close, and H. pylori eradication antibiotics achieve maximum bactericidal activity.
Dosage and Administration
⚠️ Always take exactly as prescribed by your doctor. Take 30 to 60 minutes before the first meal of the day. Never crush or chew delayed-release capsules. Do not use for longer than prescribed without medical review.
| Indication | Usual Adult Dose | Frequency | Duration |
|---|---|---|---|
| GERD — symptom relief | 20–40mg | Once daily before breakfast | 4 weeks |
| Erosive oesophagitis — healing | 40mg | Once daily before breakfast | 4–8 weeks |
| Maintenance of healed oesophagitis | 20mg | Once daily | Long-term as prescribed |
| H. pylori eradication | 40mg | Once or twice daily | 7–14 days with antibiotics |
| NSAID-induced ulcer prevention | 20mg | Once daily | Duration of NSAID therapy |
| Zollinger-Ellison syndrome | 40mg | Twice daily | Long-term under supervision |
| Peptic ulcer — treatment | 40mg | Once daily before breakfast | 4–8 weeks |
Critical Dosing Rules:
- Always take Eskem 30 to 60 minutes before the first meal of the day — food triggers acid secretion and proton pump activation; taking Esomeprazole before breakfast maximises the number of actively secreting proton pumps that are blocked
- Never crush or chew the capsule — Eskem is a delayed-release formulation with an enteric coating that protects Esomeprazole from degradation in the stomach's acidic environment before it reaches the small intestine for absorption; crushing destroys this protection and dramatically reduces effectiveness
- Do not use Eskem for longer than prescribed without medical review — long-term PPI use carries risks including hypomagnesaemia, reduced bone density, increased susceptibility to certain gut infections, and potential vitamin B12 deficiency with very prolonged use
- For H. pylori eradication, Eskem must always be taken alongside the complete prescribed antibiotic regimen — never use Esomeprazole alone for H. pylori as it does not eliminate the bacteria without antibiotic combination therapy
- If symptoms do not improve after 4 weeks of treatment consult your doctor — persistent symptoms require further investigation including endoscopy to identify underlying causes
How to Take:
- Swallow the capsule whole with a full glass of water — never crush, split, or chew
- Take 30 to 60 minutes before the first meal of the day — before breakfast for maximum effectiveness
- Take at the same time each day for consistent acid suppression throughout the 24-hour period
- If a dose is missed, take it as soon as remembered — skip if it is nearly time for the next dose; never double the dose
- If swallowing is difficult, the capsule may be opened and the intact granules mixed with a small amount of non-carbonated water or apple juice and swallowed immediately — never chew the granules
Active Ingredients
| Ingredient | Strength per Capsule |
|---|---|
| Esomeprazole (as Magnesium Trihydrate) | 40mg |
Who Should NOT Take Eskem 40mg?
Do not take if you:
- Are allergic to Esomeprazole, any other PPI (e.g., Omeprazole, Pantoprazole, Lansoprazole), or any ingredient in the capsule
- Are taking Nelfinavir (HIV medicine) — PPIs significantly and clinically meaningfully reduce its absorption and antiretroviral effectiveness
- Are under 1 year of age
Always consult your doctor before taking Eskem if you have:
- Severe liver disease (جگر کی بیماری) — Esomeprazole metabolism is significantly reduced; a lower dose of 20mg is generally recommended
- Kidney disease (گردے کی بیماری) — generally safe but monitor with prolonged use
- Osteoporosis or low bone density — long-term PPI use reduces calcium absorption and increases fracture risk particularly in the hip, wrist, and spine
- Low magnesium levels — long-term PPI use progressively reduces magnesium absorption; monitor magnesium with prolonged treatment
- Are pregnant — use only when the benefit clearly outweighs any potential risk; consult your obstetrician
- Are breastfeeding — Esomeprazole passes into breast milk in small amounts; consult your doctor
- Are elderly — long-term use increases the risk of fractures, Clostridium difficile infection, and hypomagnesaemia
- Are taking Clopidogrel — Esomeprazole moderately reduces Clopidogrel's antiplatelet effect; Pantoprazole is the preferred PPI alternative
- Have unexplained weight loss, difficulty swallowing, persistent vomiting, or blood in stools — these alarm symptoms require urgent investigation by endoscopy before starting any PPI
Side Effects
Common Side Effects:
- Headache — most commonly reported PPI side effect; usually mild and temporary
- Nausea or stomach discomfort — mild and usually settles within the first week of treatment
- Diarrhoea or constipation — altered gut microenvironment from sustained acid suppression
- Flatulence or bloating — mild and usually temporary
- Dry mouth — mild and usually self-limiting
- Mild abdominal pain — usually resolves within the first week
Serious Side Effects — Stop Taking and Seek Medical Help Immediately:
- Severe allergic reaction — swelling of face, lips, tongue or throat, difficulty breathing, widespread rash or hives (یہ طبی ہنگامی صورتحال ہے)
- Severe skin reactions — Stevens-Johnson syndrome, toxic epidermal necrolysis — widespread blistering or peeling skin; rare but life-threatening; stop immediately and seek emergency care
- Clostridium difficile infection — severe watery or bloody diarrhoea, abdominal cramps, fever — long-term acid suppression significantly increases susceptibility to this serious gut infection; seek immediate medical attention
- Hypomagnesaemia (dangerously low magnesium) — muscle cramps, tremors, irregular heartbeat, numbness, or seizures — develops progressively with long-term PPI use; monitor magnesium levels with prolonged treatment
- Subacute cutaneous lupus erythematosus — skin rash on areas exposed to sunlight — rare PPI class effect; stop and consult a dermatologist
- Severe liver reaction — yellowing of skin or eyes (یرقان), dark urine, extreme fatigue — rare but reported with Esomeprazole; stop immediately and seek urgent medical attention
- Bone fractures — long-term high-dose PPI use increases the risk of hip, wrist, and spine fractures through reduced calcium absorption — particularly in elderly patients and those with osteoporosis
- Fundic gland polyps — benign stomach polyps reported with very long-term continuous PPI use; requires endoscopic monitoring if prolonged use is necessary
- Vitamin B12 deficiency — very prolonged PPI use reduces B12 absorption; monitor B12 levels in patients on long-term therapy
Drug Interactions
| Medicine / Substance | Possible Interaction |
|---|---|
| Clopidogrel (antiplatelet) | Esomeprazole moderately reduces conversion of Clopidogrel to its active antiplatelet form — reducing its cardioprotective effect; Pantoprazole is the strongly preferred PPI alternative for patients requiring both a PPI and Clopidogrel |
| Nelfinavir (HIV medicine) | Contraindicated — Esomeprazole significantly reduces Nelfinavir absorption and antiretroviral effectiveness |
| Atazanavir / other HIV protease inhibitors | PPIs reduce absorption of these antiretroviral medicines through raised gastric pH — avoid combining or use under HIV specialist supervision with close monitoring |
| Methotrexate | PPIs reduce Methotrexate renal clearance — serious Methotrexate toxicity risk particularly at high doses; consider temporary PPI suspension during high-dose Methotrexate treatment cycles |
| Warfarin / anticoagulants | Esomeprazole may increase anticoagulant effect — monitor INR closely particularly at initiation and after dose changes |
| Ketoconazole / Itraconazole (antifungals) | Raised gastric pH significantly reduces absorption of these antifungals — may render antifungal treatment ineffective |
| Iron supplements | Raised gastric pH reduces iron salt absorption — take iron supplements at least 2 hours before or after Eskem for maximum absorption |
| Digoxin | Raised gastric pH increases Digoxin absorption — monitor Digoxin levels and cardiac status carefully |
| Tacrolimus / Cyclosporine | Esomeprazole may increase blood levels of these immunosuppressants — monitor drug levels and kidney function closely |
| Rifampicin / St John's Wort | Significantly reduce Esomeprazole blood levels through enzyme induction — may substantially reduce acid suppression effectiveness |
| Alcohol (شراب) | Directly irritates the stomach lining and counteracts the acid-healing effect of Esomeprazole — avoid completely during treatment |
Storage Instructions
- Store below 25°C in a cool, dry place
- Protect from moisture and direct sunlight — the enteric coating of the capsule granules is moisture-sensitive
- Keep in original blister pack until immediately before use
- Keep out of reach of children (بچوں کی پہنچ سے دور رکھیں)
- Do not use after the expiry date printed on the pack
Frequently Asked Questions (FAQs)
Q: Why must Eskem 40mg be taken before breakfast and not after meals? Proton pumps are most actively secreting acid when stimulated by food — taking Esomeprazole 30 to 60 minutes before breakfast ensures the medicine reaches peak blood levels precisely when the greatest number of proton pumps are activated and accessible for irreversible blockade — maximising the degree and duration of acid suppression from each dose.
Q: Can I take Eskem 40mg long-term for chronic acid reflux? Long-term PPI use requires regular medical review — prolonged treatment progressively increases the risk of magnesium deficiency, reduced bone density, vitamin B12 deficiency, and susceptibility to certain gut infections; your doctor will assess at each review whether ongoing treatment remains necessary and at what dose.
Q: Why should Eskem not be used alongside Clopidogrel? Esomeprazole inhibits the CYP2C19 enzyme that converts Clopidogrel into its active blood-thinning form — reducing its heart-protective antiplatelet effect; Pantoprazole has significantly less CYP2C19 inhibition and is the strongly preferred PPI alternative for patients who require both a PPI and Clopidogrel for cardiac protection.
Q: Can Eskem 40mg capsules be opened if swallowing is difficult? Yes — the capsule may be carefully opened and the intact granules mixed with a small amount of non-carbonated water or apple juice and swallowed immediately; however the granules must never be chewed as this destroys their enteric coating and prevents Esomeprazole from reaching the small intestine intact for absorption.
Medical Disclaimer: This information is for general awareness only and does not replace advice from your doctor or pharmacist. Unexplained or persistent stomach symptoms — including difficulty swallowing, unintentional weight loss, or blood in stools — must always be investigated by a doctor before starting Eskem. Never self-medicate with PPIs for prolonged periods without medical supervision.
