<unk> , or<unk> , sold under the brand names Primobolan and Nibal, is an androgen and anabolic steroid (AAS) medication which is used mainly in the treatment of anemia due to bone marrow failure. It is taken by mouth. Although it was widely used in the past, the drug has mostly been discontinued and hence is now mostly no longer available. A related drug,<unk>  enanthate, is given by injection into muscle. Side effects of<unk>  include symptoms of masculinization like acne, increased hair growth, voice changes, and increased sexual desire. The drug is a synthetic androgen and anabolic steroid and hence is an agonist of the androgen receptor (AR), the biological target of androgens like testosterone and dihydrotestosterone (DHT). It has moderate anabolic effects and weak androgenic effects, as well as no estrogenic effects or risk of liver damage.<unk>  enanthate is a<unk>  ester and a prodrug of<unk>  in the body.<unk>  was introduced for medical use in 1961. In addition to its medical use,<unk>  is used to improve physique and performance. The drug is a controlled substance in many countries and so non-medical use is generally illicit. It remains marketed for medical use only in a few countries, such as Japan and Moldova.
Metenolone acetate
Methandriol propionate
Trestolone
Algestone acetonide
Stenbolone acetate
Androstanolone propionate
Trenbolone acetate
Pregnenolone succinate