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Antithrombin Alfa



CAS registry number (Chemical Abstracts Service)


Chemical Formula


Molecular Weight


Therapeutic Category

Anticoagulant agent

Chemical Name

Recombinant human antithrombin (glycoform alfa), obtained from the milk of transgenic goats

Foreign Names

  • Antithrombinum alfa (Latin)
  • Antithrombin alfa (German)
  • Antithrombine alfa (French)
  • Antitrombina alfa (Spanish)

Generic Names

  • Antithrombin Alfa (OS: USAN)
  • rhAT (IS)
  • UNII-AWV6I5L6H2 (IS)

Brand Names

  • ATryn
    GTC Biotherapeutics, Poland; rEVO Biologics, United States
  • Atryn
    GTC Biotherapeutics, Spain; GTC Biotherapeutics, Greece


ISInofficial Synonym
OSOfficial Synonym
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.