Methylstenbolone, known by the nicknames M-Sten, Methyl-Sten, and Ultradrol, is a
synthetic and
orally active anabolic–androgenic steroid (AAS) and a
17α-methylated derivative
In mathematics, the derivative of a function of a real variable measures the sensitivity to change of the function value (output value) with respect to a change in its argument (input value). Derivatives are a fundamental tool of calculus. ...
of
dihydrotestosterone
Dihydrotestosterone (DHT, 5α-dihydrotestosterone, 5α-DHT, androstanolone or stanolone) is an endogenous androgen sex steroid and hormone. The enzyme 5α-reductase catalyzes the formation of DHT from testosterone in certain tissues includ ...
(DHT) which was never introduced for
medical use.
It is a
designer steroid and has been sold via the
internet
The Internet (or internet) is the global system of interconnected computer networks that uses the Internet protocol suite (TCP/IP) to communicate between networks and devices. It is a '' network of networks'' that consists of private, pub ...
marketed as a
dietary/nutritional supplement.
Side effects
Chemistry
Methylstenbolone, also known as 2,17α-dimethyl-δ
1-4,5α-dihydrotestosterone (2,17α-dimethyl-δ
1-DHT) or as 2,17α-dimethyl-5α-androst-1-en-17β-ol-3-one, is a
synthetic androstane
Androstane is a C19 steroidal hydrocarbon with a gonane core. Androstane can exist as either of two isomers, known as 5α-androstane and 5β-androstane.
File:androstane.png, 5α-Androstane
File:androstane 5beta.png, 5β-Androstane
Pharmacology ...
steroid and a
17α-alkylated derivative
In mathematics, the derivative of a function of a real variable measures the sensitivity to change of the function value (output value) with respect to a change in its argument (input value). Derivatives are a fundamental tool of calculus. ...
of DHT. It is the 17α-methylated derivative of
stenbolone, as well as the δ
1-
isomer of
methasterone (2α,17α-dimethyl-DHT). Related AAS include
mestanolone
Mestanolone, also known as methylandrostanolone and sold under the brand names Androstalone and Ermalone among others, is an androgen and anabolic steroid (AAS) medication which is mostly no longer used. It is still available for use in Japan ...
and
methyl-1-testosterone.
References
{{Androgen receptor modulators
Tertiary alcohols
Androgens and anabolic steroids
Androstanes
Designer drugs
Hepatotoxins
Enones