Metenolone enanthate

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Metenolone enanthate
Systematic (IUPAC) name
[(5S,8S,9S,10S,13S,14S,17S)-1,10,13-Trimethyl-3-
oxo-4,5,6,7,8,9,11,12,14,15,16,17-
dodecahydrocyclopenta[a]phenanthren-17-yl] heptanoate
Identifiers
CAS number 303-42-4
ATC code  ?
PubChem 248271
Chemical data
Formula C27H42O3 
Mol. mass 414.621 g/mol
Pharmacokinetic data
Bioavailability  ?
Metabolism  ?
Half life 10.5 days
Excretion  ?
Therapeutic considerations
Pregnancy cat.

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Legal status
Routes  ?

Methenolone enanthate, or methenolone enanthate, is a dihydrotestosterone (DHT) based anabolic steroid. It is an ester derivative of methenolone sold commonly under the brand names Primobolan (tablet form) or Primobolan Depot (injectable). When it interacts with the aromatase enzyme it does not form any estrogens.[citation needed] It is used by people who are very susceptible to estrogenic side effects, having lower estrogenic properties than nandrolone. Methenolone, in form of enanthate and acetate, is available as an injection or as an oral respectively. The injection is naturally regarded as having a higher bioavailability. It is an enanthate ester which is quite long-acting. Because it by-passes hepatic breakdown on the first pass, it also has a higher survival rate.[citation needed] The tablets are in a short-lived acetate form. Methenolone is not 17-alpha-alkylated, but 1-methylated for oral bioavailability. This reduces the stress on the liver, but also the availability. It is considered one of the safer steroids, meaning it has few side effects. Methenolone has no estrogenic side effects, and its effects on cholesterol levels are minimal. In doses of 200 mg or less (intramuscular) blood pressure is rarely altered. It is possibly one of the safer anabolic steroids for females due to very low virilization effects in short-term usage.[citation needed] Methenolone is also not overly suppressive of the HPTA axis, although how suppressive is debatable.[citation needed] For this reason, many bodybuilders use it in between steroid cycles during their "off-time" to help maintain their gains and strength. The long term safety of such a practice possibly dangerous and can lead to permanent suppression of the HPTA.[1]

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