Clinical data
Synonyms SH-489; Metandroden; 1-Methylandrosta-1,4-diene-3,17-dione
ATC code
  • None
Legal status
Legal status
CAS Number
PubChem CID
Chemical and physical data
Formula C20H26O2
Molar mass 298.419 g/mol
3D model (JSmol)
 NY (what is this?)  (verify)

Atamestane (developmental code name SH-489), also known as metandroden, as well as 1-methylandrosta-1,4-diene-3,17-dione, is a steroidal aromatase inhibitor that was studied in the treatment of cancer.[1] It blocks the production of estrogen in the body. The drug is selective, competitive, and irreversible in its inhibition of aromatase.[2]

See also

  • Boldione (androsta-1,4-diene-3,17-dione)


  1. J. Elks (14 November 2014). The Dictionary of Drugs: Chemical Data: Chemical Data, Structures and Bibliographies. Springer. pp. 794–. ISBN 978-1-4757-2085-3.
  2. el Etreby MF (March 1993). "Atamestane: an aromatase inhibitor for the treatment of benign prostatic hyperplasia. A short review". J. Steroid Biochem. Mol. Biol. 44 (4-6): 565–72. doi:10.1016/0960-0760(93)90260-4. PMID 7682838.
  • Atamestane entry in the public domain NCI Dictionary of Cancer Terms

 This article incorporates public domain material from the U.S. National Cancer Institute document "Dictionary of Cancer Terms".

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