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Testosterone undecanoate

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Title: Testosterone undecanoate  
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Subject: Hormonal contraception, Hydroxyflutamide, Zanoterone, 5-Androstenedione, Enzalutamide
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Testosterone undecanoate

Testosterone undecanoate
Systematic (IUPAC) name
(8R,9S,10R,13S,14S,17S)-10,13-dimethyl-3-oxo-1,2,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-17-yl undecanoate
Clinical data
Pregnancy cat.
Legal status
Routes oral,I.V
Pharmacokinetic data
Bioavailability 7%
Metabolism Liver, Testis and Prostate
Half-life 1-12 days
Excretion Urine
CAS number  N
ATC code G03
ChemSpider  YesY
Chemical data
Formula C30H48O3 
Mol. mass 456.70032

Testosterone undecanoate or testosterone undecylate is an ester of testosterone. This hormone is used in androgen replacement therapy primarily for the treatment of male hypogonadism, and is currently under research for use as a male contraceptive. It is sold and distributed under the brand names Aveed, Andriol, Undestor, Nebido, Pantestone, Restandol, Cernos Depot, Nebido-R and Reandron 1000.[1]


  1. ^ Köhn, FM; Schill, WB (Nov 2003). "A new oral testosterone undecanoate formulation.". World J Urol 21 (5): 311–5.  

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