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In the US, Lansoprazole (lansoprazole systemic) is a member of the drug class proton pump inhibitors and is used to treat Aspiration Pneumonia, Barrett's Esophagus, Duodenal Ulcer, Duodenal Ulcer Prophylaxis, Erosive Esophagitis, Gastritis/Duodenitis, GERD, Helicobacter Pylori Infection, Multiple Endocrine Adenomas, NSAID-Induced Gastric Ulcer, NSAID-Induced Ulcer Prophylaxis, Stomach Ulcer, Systemic Mastocytosis 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


Foreign Names

Generic Names

  • Lansoprazole (OS: BAN, USAN, DCF, JAN)
  • A 65006 (IS: Abbott)
  • AG 1749 (IS: Takeda)
  • Lansoprazole (PH: BP 2015, Ph. Eur. 8, USP 37)
  • Lansoprazolum (PH: Ph. Eur. 8)

Brand Names

International Drug Name Search


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

Click for further information on drug naming conventions and 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.