Methenolone Heptanoate

For R&D use onlynot for drug household or other uses.

Metenolone 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.[medical citation needed] It is used by people who are very susceptible to estrogenic side effects having lower estrogenic properties than nandrolone.[medical citation needed] Methenolone in form of enanthate and acetate is available as an injection or as an oral formulation. The injection is 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. 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. In doses of 200 mg per week or less (intramuscular) blood pressure is rarely altered.[medical citation needed] Methenolone can be suppressive of the hypothalamic-pituitary-gonadal axis.