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Definition: "An ergogenic aid is any substance or phenomenon that enhances performance "
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17.01.2013 |
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Waist measurement says more about health than BMI
The anabolic effect of methylstenbolone exceeded that of methyltestosterone by a factor seven, based on Julius Vida's standard textbook Androgens and Anabolic Agents. According to Vida, the androgenic effect of methylstenbolone and methyl-testosterone are comparable.
Methylstenbolone didn't make it to the market. Until recently that is, when Antaeus Labs introduced it. It's often still dubious whether designer supplements actually contain the substances mentioned on the label, but the Brazilian chemist Gustavo de Albuquerque Cavalcanti did indeed detect methylstenbolone in Antaeus' Ultradrol.
Little is known about the pharmacokinetics of methylstenbolone so the researchers gave male volunteers a capsule of Ultradrol. This enabled them to work out that methylstenbolone [structural formula below left] changes in the body into its two main metabolites S1 and S2 [structural formulas below right].
The figure above shows how the urinary concentration of methylstenbolone [squares, right-hand Y axis] and that of S1 [triangles] and S2 [circles] [left-hand Y axis] fluctuates after being ingested by a test subject.
Although Ultradrol is still available through webstores, Ultradrol is conspicuously absent on the Antaeus website. Looks like Antaeus has stopped producing it.
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