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ATC (Anatomical Therapeutic Chemical Classification)


CAS registry number (Chemical Abstracts Service)


Chemical Formula


Molecular Weight


Therapeutic Categories


Hormonal contraceptive for systemic use

Chemical Names

(E)-13-Etyl-17-hydroxy-18,19-dinor-17-α-pregn-4-en-20-in-3-onoxim (IUPAC)

13-etyl-17-hydroxy-18,19-dinor-17α-pregn-4-en-20-yn-3-one oxime (WHO)

17-Hydroxy-18-homo-19-nor-17α-pregn-4-en-20-yn-3-one oxime (BAN)

18,19-Dinorpregn-4-en-20-yn-3-one, 13-etyl-17-hydroxy-, oxime, (17α)- (USAN)

18,19-Dinorpregn-4-en-20-yn-3-one, 13-etyl-17-hydroxy-, oxime, (8-α,9-beta,10-α, 13-α, 14-beta)-

Foreign Names

  • Norelgestrominum (Latin)
  • Norelgestromin (German)
  • Norelgestromine (French)
  • Norelgestromina (Spanish)

Generic Names

  • Norelgestromin (OS: USAN, BAN)
  • 17-Deacylnorgestimate (IS)
  • 18-Methylnorethindrone oxime (IS)
  • BRN 4202099 (IS)
  • D-Norgestrel 3-oxime (IS)
  • Levonorgestrel oxime (IS)
  • Norplant 3-oxime (IS)
  • RWJ-10553 (IS: JohnsonJohns)

Brand Names

  • Evra (Norelgestromin and Ethinylestradiol)
    Janssen, Brazil; Janssen, Canada; Janssen, Chile; Janssen, Finland; Janssen, Hong Kong; Janssen, Ireland; Janssen, Iceland; Janssen, Malaysia; Janssen, Norway; Janssen, Romania; Janssen, Singapore; Janssen, Slovakia; Janssen, Thailand; Janssen, Taiwan; Janssen, Venezuela; Janssen, South Africa; Janssen-Cilag, Belgium; Janssen-Cilag, Switzerland; Janssen-Cilag, Czech Republic; Janssen-Cilag, Germany; Janssen-Cilag, Denmark; Janssen-Cilag, Ecuador; Janssen-Cilag, Spain; Janssen-Cilag, France; Janssen-Cilag, United Kingdom; Janssen-Cilag, Greece; Janssen-Cilag, Israel; Janssen-Cilag, Italy; Janssen-Cilag, Lithuania; Janssen-Cilag, Latvia; Janssen-Cilag, Mexico; Janssen-Cilag, Peru; Janssen-Cilag, Poland; Janssen-Cilag, Portugal; Janssen-Cilag, Vietnam; Janssen-Cilag International, Austria; Johnson & Johnson, Croatia (Hrvatska); Lohmann Therapie System LTS, Oman
  • Ortho Evra (Norelgestromin and Ethinylestradiol)
    Janssen Pharma, United States
  • Rigevidon 21 + 7 FE (Norelgestromin and Ethinylestradiol, + Ferrous Fumarate)
    Gedeon Richter, Thailand


BANBritish Approved Name
IUPACInternational Union of Pure and Applied Chemistry
ISInofficial Synonym
OSOfficial Synonym
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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