Boldenone undecylenate

Source: Wikipedia, the free encyclopedia.
Boldenone undecylenate
Clinical data
Trade namesBoldane, Equipoise, Parenabol, others
Other namesBoldenone undecenoate; Ba 29038; Boldenone 17β-undec-10-enoate; Δ1-Testosterone 17β-undec-10-enoate; 1-Dehydrotestosterone 17β-undec-10-enoate; Androsta-1,4-dien-17β-ol-3-one 17β-undec-10-enoate
Pregnancy
category
  • AU: X (High risk)
Routes of
administration		Intramuscular injection
Drug classAndrogen; Anabolic steroid; Androgen ester
ATC code
  • None
Legal status
Legal status
Pharmacokinetic data
Elimination half-lifeIntramuscular: 14 days[1]
Identifiers
  • [(8R,9S,10R,13S,14S,17S)-10,13-Dimethyl-3-oxo-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthren-17-yl] undec-10-enoate
JSmol)
  • C[C@]12CC[C@H]3[C@H]([C@@H]1CC[C@@H]2OC(=O)CCCCCCCCC=C)CCC4=CC(=O)C=C[C@]34C
  • InChI=1S/C30H44O3/c1-4-5-6-7-8-9-10-11-12-28(32)33-27-16-15-25-24-14-13-22-21-23(31)17-19-29(22,2)26(24)18-20-30(25,27)3/h4,17,19,21,24-27H,1,5-16,18,20H2,2-3H3/t24-,25-,26-,27-,29-,30-/m0/s1
  • Key:AHMMSNQYOPMLSX-CNQKSJKFSA-N

Boldenone undecylenate, or boldenone undecenoate, sold under the brand names Equipoise and Parenabol among others, is an androgen and anabolic steroid (AAS) medication which is used in veterinary medicine, mainly in horses.[2][3][4][5][6] It was formerly used in humans as well.[6] It is given by injection into muscle.[6]

anabolic effects and moderate androgenic effects, weak estrogenic effects, and no risk of liver damage.[6][7] Boldenone undecylenate is an androgen ester and a long-lasting prodrug of boldenone in the body.[6]

Boldenone undecylenate was introduced for medical use in the 1960s.[6] In addition to its medical use, boldenone undecylenate is used to improve physique and performance.[6] The drug is a controlled substance in the United States and its use is generally illicit.[6] It remains marketed for veterinary use in Australia and the United States.[6][5]

Uses

Veterinary

Boldenone undecylenate is used in veterinary medicine, mainly in horses.[6][5]

Clinical

Boldenone undecylenate was formerly used in

DEA Schedule III controlled substance.[10]

Side effects

See also: Anabolic steroid § Adverse effects

Pharmacology

Pharmacodynamics

Boldenone undecylenate is a

17α-alkylated, boldenone and boldenone undecylenate have little or no risk of hepatotoxicity.[6]

Pharmacokinetics

Boldenone undecylenate is a

affinity for this enzyme is said to be extremely low.[6]

Chemistry

See also:
List of androgens/anabolic steroids and List of androgen esters

Boldenone undecylenate, or boldenone 17β-undec-10-enoate, is a

17α-alkylated variant of metandienone (17α-methyl-δ1-testosterone).[2][3][6] An AAS related to boldenone undecylenate is quinbolone (δ1-testosterone 17β-cyclopentenyl enol ether).[2][3]

Structural properties of major anabolic steroid esters
Anabolic steroid Structure Ester Relative
mol. weight		 Relative
AAS contentb		 Durationc
Position Moiety Type Lengtha
Boldenone undecylenate
C17β Undecylenic acid Straight-chain fatty acid 11 1.58 0.63 Long
Drostanolone propionate
C17β
Propanoic acid
 Straight-chain fatty acid 3 1.18 0.84 Short
Metenolone acetate
C17β
Ethanoic acid
 Straight-chain fatty acid 2 1.14 0.88 Short
Metenolone enanthate
C17β
Heptanoic acid
 Straight-chain fatty acid 7 1.37 0.73 Long
Nandrolone decanoate
C17β
Decanoic acid
 Straight-chain fatty acid 10 1.56 0.64 Long
Nandrolone phenylpropionate
C17β Phenylpropanoic acid Aromatic fatty acid – (~6–7) 1.48 0.67 Long
Trenbolone acetate
C17β
Ethanoic acid
 Straight-chain fatty acid 2 1.16 0.87 Short
Trenbolone enanthated
C17β
Heptanoic acid
 Straight-chain fatty acid 7 1.41 0.71 Long
Footnotes: a = Length of
oil solution
. d = Never marketed. Sources: See individual articles.

History

Boldenone was reportedly

Squibb introduced boldenone undecylenate for veterinary use under the brand name Equipoise.[6] The medication has been used much more widely in veterinary medicine, in which it has been used mainly in horses, and remains in use today.[6][5]

Society and culture

Generic names

Boldenone undecylenate is the

generic name of the drug and its USANTooltip United States Adopted Name, while boldenone undecenoate is its BANMTooltip British Approved Name.[2][3][5]

Brand names

Boldenone undecylenate is or has been marketed under a number of brand names including Boldane, Equipoise, Parenabol, and Vebonol among others.[2][3][5][6]

Availability

Boldenone undecylenate remains marketed for veterinary use in Australia and the United States.[6][5]

Doping in sports

See also:
List of doping in sport cases § Boldenone undecylenate

There are many known cases of doping in sports with boldenone undecylenate by professional athletes.

References

  1. ^
    ISBN 978-1-60547-277-5
    .
  2. ^
    ISBN 978-1-4757-2085-3
    .
  3. ^
    ISBN 978-3-88763-075-1
    .
  4. ISBN 978-94-011-4439-1
    .
  5. ^ a b c d e f g "Boldenone". Drugs.com. Retrieved 28 April 2017.
  6. ^
    ISBN 978-0-9828280-1-4
    .
  7. ^
    PMID 18500378
    .
  8. ^ "CFR - Code of Federal Regulations Title 21". www.accessdata.fda.gov. Retrieved 2021-02-22.
  9. ^ "5 Things Athletes Should Know About Boldenone". www.usada.org. 9 April 2020. Archived from the original on 2020-12-05. Retrieved 2021-02-22.
  10. ^ "Boldenone undecylenate". PubChem. U.S. National Libbrary of Medicine. Retrieved 2021-02-22.
  11. ^ "Boldenone Undecylenate - Equipoise: Injections, Dosages and Administration". workoutmag.net. 29 August 2020. Archived from the original on 2020-10-23. Retrieved 2021-02-22.
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