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In the US, Ondansetron (ondansetron systemic) is a member of the drug class 5HT3 receptor antagonists and is used to treat Alcohol Dependence, Gastroenteritis, Nausea/Vomiting, Nausea/Vomiting - Chemotherapy Induced, Nausea/Vomiting - Postoperative, Nausea/Vomiting - Radiation Induced, Obsessive Compulsive Disorder, Postanesthetic Shivering and Pruritus.

US matches:

UK matches:



ATC (Anatomical Therapeutic Chemical Classification)


CAS registry number (Chemical Abstracts Service)


Chemical Formula


Molecular Weight


Therapeutic Categories

Antiemetic agent

Serotonin 5HT₃-receptor antagonist

Chemical Names

(+-)-2,3-dihydro-9-metyl-3-[(2-metylimidazol-1-yl)metyl]carbazol-4(1H)-one (WHO)

4H-Carbazol-4-one, 1,2,3,9-tetrahydro-9-metyl-3-[(2-metyl-1H-imidazol-1-yl)metyl]-

Foreign Names

  • Ondansetronum (Latin)
  • Ondansetron (German)
  • Ondansétron (French)
  • Ondansetron (Spanish)

Generic Names

  • Ondansetron (OS: BAN, DCIT, JAN)
  • Ondansétron (OS: DCF)
  • Ondansetron (PH: USP 41)
  • Ondansetron Hydrochloride (OS: BANM, USAN)
  • Ondansetron Hydrochloride Hydrate (OS: JAN)
  • GR 38032F (IS)
  • GR-C507/75 (IS)
  • Ondansetron hydrochlorid-2-Wasser (IS)
  • SN-307 (IS)
  • Ondansetron Hydrochloride (PH: USP 41)
  • Ondansetron Hydrochloride Dihydrate (PH: BP 2018)
  • Ondansetron hydrochloride dihydrate (PH: Ph. Eur. 9)
  • Ondansetronhydrochlorid-Dihydrat (PH: Ph. Eur. 9)
  • Ondansetroni hydrochloridum dihydricum (PH: Ph. Eur. 9)

Brand Names


BANBritish Approved Name
BANMBritish Approved Name (Modified)
DCFDénomination Commune Française
DCITDenominazione Comune Italiana
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

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