Testosterone isobutyrate

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Testosterone isobutyrate
Clinical data
Trade namesAgovirin-Depot, Perandren M, Testocryst, Virex-Cryst
Routes of
administration		Intramuscular injection
Drug classAndrogen; Anabolic steroid; Androgen ester
ATC code
Pharmacokinetic data
MetabolitesTestosterone
Duration of action~2 weeks[1][2][3]
Identifiers
  • [(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] 2-methylpropanoate
CAS Number
PubChem CID
ChemSpider
UNII
CompTox Dashboard (EPA)
ECHA InfoCard100.013.293 Edit this at Wikidata
Chemical and physical data
FormulaC23H34O3
Molar mass358.522 g·mol−1
3D model (JSmol)
  • CC(C)C(=O)O[C@H]1CC[C@@H]2[C@@]1(CC[C@H]3[C@H]2CCC4=CC(=O)CC[C@]34C)C
  • InChI=1S/C23H34O3/c1-14(2)21(25)26-20-8-7-18-17-6-5-15-13-16(24)9-11-22(15,3)19(17)10-12-23(18,20)4/h13-14,17-20H,5-12H2,1-4H3/t17-,18-,19-,20-,22-,23-/m0/s1
  • Key:PYHZLMFTKOTWGQ-WAUHAFJUSA-N

Testosterone isobutyrate, sold under the brand names Agovirin-Depot and Perandren M among others, is an androgen and anabolic steroid medication and a testosterone ester which is used for indications such as low testosterone levels in men and delayed puberty in boys.[1][4] It is available only in the Czech Republic and Slovakia.[1] The medication is administered by injection into muscle once every 1 to 2 weeks in males.[1] Unlike most other testosterone esters, which are provided as oil solutions, testosterone isobutyrate is formulated as a microcrystalline aqueous suspension.[1]

  1. ^ a b c d e Llewellyn W (2011). Anabolics. Molecular Nutrition Llc. pp. 314–322. ISBN 978-0-9828280-1-4.
  2. ^ Cite error: The named reference SchuermannDoepfmer2013 was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference Ufer1960 was invoked but never defined (see the help page).
  4. ^ "AGOVIRIN DEPOT Injekční suspenze (Testosteroni isobutyras)" (PDF). Biotika A.S. 16 March 2011. Archived from the original (PDF) on 2019-05-20. Retrieved 2019-05-20.