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WHO Model List

omeprazole

International nonproprietary name (English: omeprazole). Brand names vary by country.

Indications retained by WHO

Gastro-oesophageal reflux disease; Peptic ulcer, site unspecified; Gastrointestinal bleeding.

Listed forms and strengths

  • Oral > Liquid: 1 mg per mL powder for oral liquid; 4 mg per mL powder for oral liquid
  • Oral > Solid > dosage form: 10 mg; 20 mg; 40 mg
  • Parenteral > General injections > IV: 40 mg in vial

Forms retained in the model list; presentations available in each country may differ.

General information from the WHO list. It replaces neither the prescription nor the leaflet: dosage and duration are for the doctor or pharmacist to decide.

Source: WHO electronic Essential Medicines List (2025 edition), checked on 13/11/2026. An error or an imprecision? Let us know