Omeprazole Nord (Omeprazole)

Omeprazole Nord belongs to the proton pump inhibitor class and is indicated for conditions involving excess gastric acid production.

• Gastro‑oesophageal reflux disease (GERD): relief of heartburn and healing of esophageal erosion.
• Erosive oesophagitis: promotes mucosal healing and symptom control.
• Peptic ulcer disease: facilitates ulcer healing and reduces recurrence.
• Zollinger‑Ellison syndrome: controls hyper‑secretion of gastric acid.
• Helicobacter pylori eradication (as part of combination therapy): enhances eradication rates when used with antibiotics.

• Omeprazole selectively and irreversibly inhibits the H+/K+‑ATPase enzyme (the gastric proton pump) located on the secretory surface of gastric parietal cells. By blocking this final step of acid secretion, it markedly reduces both basal and stimulated gastric acidity, allowing ulcer healing and symptom relief in acid‑related disorders.

Common Side Effects

• Headache: mild to moderate intensity, often transient.
• Abdominal pain: discomfort or cramping in the stomach region.
• Diarrhoea: loose stools that may occur early in therapy.
• Nausea: feeling of unease or urge to vomit.
• Flatulence: increased intestinal gas.
• Constipation: reduced bowel movements.

Serious or Rare Side Effects

• Clostridioides difficile infection: severe colitis presenting with watery diarrhoea.
• Severe allergic reactions: rash, swelling, or anaphylaxis.
• Stevens‑Johnson syndrome/toxic epidermal necrolysis: rare skin blistering disorders.
• Elevated liver enzymes: potential hepatic injury.
• Hypomagnesemia: low serum magnesium with prolonged use.
• Increased risk of bone fractures: especially with long‑term therapy.

Before initiating therapy, consider the following precautions:

• Assess renal and hepatic function: dose adjustment may be required in severe impairment.
• Evaluate for Helicobacter pylori infection: eradication therapy may be indicated.
• Monitor magnesium levels during long‑term use: supplement if deficiency develops.
• Avoid abrupt discontinuation after prolonged therapy: taper to prevent rebound acid hypersecretion.
• Store at ambient temperature: keep in the original pack, protect from moisture.

Omeprazole Nord may interact with several medicines; review patient medication lists carefully.

Major Interactions (Avoid)

• Clopidogrel: reduced antiplatelet effect, increasing cardiovascular risk.
• Atazanavir: decreased absorption, leading to sub‑therapeutic antiviral levels.
• High‑dose methotrexate: increased toxicity due to reduced renal clearance.

Moderate Interactions (Monitor Closely)

• Warfarin: potential increase in INR, requiring more frequent monitoring.
• Diazepam: elevated serum concentrations, may enhance sedation.
• Digoxin: increased levels, risk of arrhythmia; monitor plasma concentrations.