Omeprazolo Sun Pharma Italia Srl (Omeprazole)

Omeprazole acts on the gastric acid secretion pathway and provides symptomatic relief in several acid‑related disorders.

• Gastro‑esophageal reflux disease (GERD): improves heartburn and esophageal healing.
• Peptic ulcer disease: promotes ulcer healing and reduces recurrence.
• Zollinger‑Ellison syndrome: controls excessive gastric acid production.
• Helicobacter pylori eradication regimens: enhances eradication success when combined with antibiotics.
• NSAID‑induced ulcer prophylaxis: lowers risk of ulcer development in chronic NSAID users.

• Omeprazole selectively inhibits the H+/K+‑ATPase enzyme (the gastric proton pump) located on the secretory surface of parietal cells. By binding covalently to the pump’s cysteine residues, it blocks the final step of acid secretion, leading to a sustained increase in gastric pH and reduced acidity in the stomach lumen.

Omeprazole is generally well‑tolerated, but adverse reactions may occur.

Common Side Effects

• Headache.
• Diarrhea.
• Nausea.
• Abdominal pain.
• Flatulence.
• Constipation.

Serious or Rare Side Effects

• Severe allergic reaction (anaphylaxis, angioedema).
• Clostridioides difficile‑associated colitis.
• Low magnesium levels (hypomagnesemia).
• Bone fractures (hip, wrist, spine) with long‑term use.
• Acute interstitial nephritis.
• Liver enzyme elevation.

When using Omeprazole, consider the following safety measures:

• Assess renal function: adjust use in severe renal impairment.
• Monitor magnesium: prolonged therapy may lower serum magnesium.
• Evaluate bone health: long‑term use is linked to increased fracture risk.
• Review concomitant medications: potential for altered absorption of drugs that require acidic pH.
• Pregnancy and lactation: use only if clearly needed.
• Store at ambient temperature: keep in original packaging, protect from moisture.

Omeprazole may interact with several medicines, requiring clinical awareness.

Major Interactions (Avoid)

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