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In the US, Esomeprazole (esomeprazole systemic) is a member of the drug class proton pump inhibitors and is used to treat Barrett's Esophagus, Duodenal Ulcer Prophylaxis, Erosive Esophagitis, Gastric Ulcer Prophylaxis, Gastritis/Duodenitis, GERD, Helicobacter Pylori Infection, NSAID-Induced Gastric Ulcer, Pathological Hypersecretory Conditions and Zollinger-Ellison Syndrome.

US matches:

UK matches:



ATC (Anatomical Therapeutic Chemical Classification)


CAS registry number (Chemical Abstracts Service)


Chemical Formula


Molecular Weight


Therapeutic Categories

Gastric acid secretion inhibitor

Treatment of peptic ulcer and gastro-oesophageal reflux disease (GORD)

Proton pump inhibitor (PPI)

Chemical Name

5-Metoxy-2-[(S)-[(4-metoxy-3,5-dimetyl-2-pyridyl)metyl]sulfinyl]benzimidazole (WHO)

Foreign Names

Generic Names

  • Esomeprazole (OS: BAN)
  • Ésoméprazole (OS: DCF)
  • (-)-Omeprazole (IS)
  • (S)-Omeprazole (IS)
  • H 199/18 (IS)
  • Perprazole (IS)
  • (S)-Omeprazol magnesium (IS)
  • Esomeprazole Magnesium (PH: USP 41)
  • Esomeprazole hemimagnesium hydrate (IS)
  • Esomeprazole Magnesium Dihydrate (PH: BP 2018, Ph. Eur. 9)
  • Esomeprazole Magnesium (OS: BAN, USAN)
  • Esomeprazole Magnesium Hydrate (OS: JAN)
  • (-)-Omeprazole magnesium trihydrate (IS)
  • (S)-Omeprazole magnesium trihydrate (IS)
  • Esomeprazole hemimagnesium-1.5-hydrate (IS)
  • Esomeprazole hemimagnesium-3-hydrate (IS)
  • H-199/18 magnesium trihydrate (IS)
  • Ésoméprazole magnésique trihydaté (PH: Ph. Eur. 9)
  • Esomeprazole magnesium trihydrate (PH: Ph. Eur. 9)
  • Esomeprazole Magnesium Trihydrate (PH: BP 2018)
  • Esomeprazol-Magnesium-Trihydrat (PH: Ph. Eur. 9)
  • Esomeprazolum manesicum trihydricum (PH: Ph. Eur. 9)
  • Esomeprazole Sodium (OS: USAN)
  • H199/18 sodium (AstraZeneca) (IS)
  • Esomeprazole Strontium (OS: USAN)
  • Esomeprazole Strontium (PH: USP 41)

Brand Names


BANBritish Approved Name
DCFDénomination Commune Française
ISInofficial Synonym
JANJapanese Accepted Name
OSOfficial Synonym
PHPharmacopoeia Name
Rec.INNRecommended International Nonproprietary Name (World Health Organization)
USANUnited States Adopted Name
WHOWorld Health Organization

Further information on drug naming conventions: International Nonproprietary Names.

Important Notice: The international database is in BETA release. This means it is still under development and may contain inaccuracies. It is not intended as a substitute for the expertise and judgement of your physician, pharmacist or other healthcare professional. It should not be construed to indicate that the use of any medication in any country is safe, appropriate or effective for you. Consult with your healthcare professional before taking any medication.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.