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1 May 2026Injectable drugs

Omeprazole Injectable: Dosing and Precautions

Omeprazole injectable guidance for peptic ulcer perforation when IV proton pump inhibition is needed.

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Omeprazole
Prescription under medical supervision

Source reviewed

source date listed on the source page

Guide category

Injectable drugs

Safety boundary

Prescription medicine information for clinician-guided use.

Kenza Health Hub presents this medicine page as structured health education. Check dose, route, interactions, pregnancy or breast-feeding considerations, and local protocol with a qualified clinician or pharmacist. Read our medical editorial policy.

This guide page is for structured reference only and does not replace a clinician, pharmacist, or emergency review. Dose choice, route choice, interactions, and safety decisions still need professional judgment.

Therapeutic action

Antiulcer drug (proton pump inhibitor).

Indications

Peptic ulcer perforation.

Forms and strengths, route of administration

  • Powder for injection, 40 mg vial, to be dissolved in 100 ml of 0.9% sodium chloride or 5% glucose for IV infusion.

Dose

  • Adult: 40 mg once daily to be administered over 20 to 30 minutes.

Duration

Change to oral treatment as soon as the patient can eat.

Contra-indications, adverse effects, precautions

  • May cause headache, diarrhoea, skin rash, nausea, abdominal pain, and dizziness.
  • Avoid combination with itraconazole and ketoconazole.
  • Monitor combination with warfarin, digoxin, and phenytoin.
  • Do not exceed 20 mg daily in patients with severe hepatic impairment.
  • Pregnancy: no contra-indication.
  • Breast-feeding: avoid, administer only if clearly needed.
  • Only use 0.9% sodium chloride or 5% glucose for dilution.
  • Injectable omeprazole is not included in the WHO list of essential medicines.

Source

MSF Essential drugs practical guidelines (January 2026)

This page combines source-derived medicine reference sections with Kenza editorial context, while leaving out the Storage and Remarks sections from the source batch.

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