Methenolone enanthate is a dihydrotestosterone (DHT) based anabolic ste- roid. It is an ester derivative of methenolone sold commonly under the brand names Primover (injectable). When it interacts with the aromatase enzyme it does not form any estrogens. 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 avail- able as an injection or as an oral respectively. The injection is naturally re- garded 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.