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Systematic (IUPAC) name
Clinical data
  • Used in threatened miscarriage and RPL
CAS Registry Number 432-60-0 YesY
ATC code G03DC01
PubChem CID: 235905
DrugBank DB01431 YesY
ChemSpider 205855 YesY
KEGG D01374 YesY
Synonyms 17α-Allylestr-4-en-17β-ol
Chemical data
Formula C21H32O
Molecular mass 300.48 g/mol
 N (what is this?)  (verify)

Allylestrenol (BAN/INN), also known as allyloestrenol and allyl estrenol, is a synthetic progestogen used to prevent threatened miscarriage, recurrent pregnancy loss and premature labor.[1][2] In men, it has also been studied as a treatment for benign prostatic hyperplasia, with encouraging results.[3][4]

Allylestrenol is sold under several trade names, including Gestin, Turinal, Gestrenol, Gestanin, Gestanol or Gestanon, Maintaine, Orageston, and Profar. It is currently not marketed in the United States, United Kingdom, or Canada, but as of 2011, is extensively used in Bangladesh, Japan, Russia, India, and much of Southeast Asia.[1]


  1. ^ a b Sweetman, Sean C., ed. (2009). "Sex hormones and their modulators". Martindale: the complete drug reference (36th ed.). London: Pharmaceutical Press. p. 2082. ISBN 978-0-85369-840-1. 
  2. ^ Cortés-Prieto J, Bosch AO, Rocha JA (1980). "Allylestrenol: three years of experience with Gestanon in threatened abortion and premature labor". Clinical Therapeutics 3 (3): 200–8. PMID 7459930. 
  3. ^ Fukuoka H, Ishibashi Y, Shiba T, Tuchiya F, Sakanishi S (July 1993). "[Clinical study of allylestrenol (Perselin) on patients with prostatic hypertrophy]". Hinyokika Kiyo. Acta Urologica Japonica (in Japanese) 39 (7): 679–83. PMID 7689782. 
  4. ^ Noguchi K, Takeda M, Hosaka M, Kubota Y (May 2002). "[Clinical effects of allylestrenol on patients with benign prostatic hyperplasia (BPH) evaluated with criteria for treatment efficacy in BPH]". Hinyokika Kiyo. Acta Urologica Japonica (in Japanese) 48 (5): 269–73. PMID 12094708. 

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