Skip to Content


In the US, Naloxegol (naloxegol systemic) is a member of the drug class peripheral opioid receptor antagonists and is used to treat Constipation - Chronic, Constipation - Drug Induced and Opioid-Induced Constipation.

US matches:



ATC (Anatomical Therapeutic Chemical Classification)


CAS registry number (Chemical Abstracts Service)


Chemical Formula


Molecular Weight


Therapeutic Categories

μ-opioid receptor antagonist

Laxative: Treatment of opioid-induced constipation (OIC)

Chemical Name

4,5α-epoxy-6α-[(3,6,9,12,15,18,21-heptaoxadocosan-1-yl)oxy]-17-(prop-2-en-1-yl)morphinan-3,14-diol (WHO)

Foreign Names

  • Naloxegolum (Latin)
  • Naloxegol (German)
  • Naloxégol (French)
  • Naloxegol (Spanish)

Generic Names

  • Naloxegol (OS: USAN)
  • Naloxol, pegyliert (IS)
  • NKTR-118 (IS)
  • UNII-44T7335BKE (IS)
  • Naloxegol Oxalate (OS: USAN)
  • NKTR-118 oxalate (IS)
  • UNII-65I14TNM33 (IS)

Brand Names

  • Moventig
    AstraZeneca, Croatia (Hrvatska); AstraZeneca, Poland
  • Movantik
    AstraZeneca, United States
  • Moventig
    AstraZeneca, Switzerland; AstraZeneca, Germany; AstraZeneca UK, United Kingdom


ISInofficial Synonym
OSOfficial Synonym
Rec.INNRecommended International Nonproprietary Name (World Health Organization)
USANUnited States Adopted Name
WHOWorld Health Organization

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.