Omeprazole Rompharm (Omeprazole)

Omeprazole Rompharm, a proton pump inhibitor, is used to manage conditions associated with excess gastric acid.

• Gastroesophageal reflux disease (GERD): decreases acid exposure and relieves heartburn and regurgitation.
• Peptic ulcer disease: promotes ulcer healing by maintaining a higher gastric pH.
• NSAID‑induced ulcer prophylaxis: protects the gastric mucosa in patients receiving non‑steroidal anti‑inflammatory drugs.
• Helicobacter pylori eradication regimens: enhances the effectiveness of antibiotic therapy by suppressing acid production.

• Omeprazole irreversibly binds to the H+/K+ ATPase enzyme (gastric proton pump) located on the secretory surface of parietal cells. By inhibiting this final step of acid secretion, it markedly reduces both basal and stimulated gastric acid output, leading to an elevated gastric pH and facilitating mucosal healing.

Omeprazole Rompharm may cause adverse reactions, ranging from mild to severe.

Common Side Effects

• Headache: mild to moderate intensity.
• Diarrhea: loose stools, usually transient.
• Nausea: occasional feeling of queasiness.
• Abdominal pain: discomfort in the upper abdomen.
• Flatulence: increased gas production.
• Constipation: reduced bowel movements.

Serious or Rare Side Effects

• Clostridioides difficile infection: severe colitis with watery diarrhea.
• Anaphylaxis: life‑threatening allergic reaction with rash, swelling, and airway compromise.
• Hepatic enzyme elevation: increased ALT/AST levels indicating liver stress.
• Thrombocytopenia: reduced platelet count, potentially leading to bleeding.
• Stevens‑Johnson syndrome: severe skin and mucous membrane reaction.
• Cardiac arrhythmia: irregular heart rhythm in susceptible individuals.

Before initiating therapy, consider the following precautions.

• Renal function assessment: adjust use in patients with severe renal impairment.
• Hepatic impairment: use cautiously in moderate to severe liver disease.
• Electrolyte monitoring: watch for hypomagnesemia during prolonged treatment.
• Rebound acid hypersecretion: avoid abrupt discontinuation after long‑term use.
• Pregnancy and lactation: prescribe only if the potential benefit justifies the potential risk.
• Store at ambient temperature: keep in the original container, protect from moisture and light.

Omeprazole Rompharm can affect the pharmacokinetics of several drugs.

Major Interactions (Avoid)

• Atazanavir: reduced absorption leading to therapeutic failure.
• Clopidogrel: decreased activation, diminishing antiplatelet effect.
• Methotrexate: reduced clearance, increasing toxicity risk.
• Rilpivirine: markedly lowered plasma concentrations.

Moderate Interactions (Monitor Closely)

• Warfarin: potential increase in INR, requiring closer monitoring.
• Digoxin: possible increase in serum levels, watch for toxicity.
• Phenytoin: decreased levels may reduce seizure control.
• Ketoconazole: increased exposure, monitor for adverse effects.