Beijing Nuoxuan Kangle Biological Science and Technology Co.ltd.

Nandrolone, also known as 19-nortestosterone, is an androgen and anabolic steroid (AAS) which is used in the form of esters such as nandrolone decanoate (brand name Deca-Durabolin) and nandrolone phenylpropionate (brand name Durabolin).Nandrolone esters are used in the treatment of anemias, cachexia (wasting syndrome), osteoporosis, breast cancer, and for other indications.They are not active by mouth and must be given by injection into muscle.

Side effects of nandrolone esters include symptoms of masculinization like acne, increased hair growth, voice changes, and increased sexual desire.They are synthetic androgens and anabolic steroids and hence are agonists of the androgen receptor (AR), the biological target of androgens like testosterone and dihydrotestosterone (DHT).Nandrolone esters have strong anabolic effects and weak androgenic effects, which give them a mild side effect profile and make them especially suitable for use in women.They are long-lasting prodrugs of nandrolone in the body.

Nandrolone esters were first described and introduced for medical use in the late 1950s.They are among the most widely used AAS worldwide.In addition to their medical use, nandrolone esters are used to improve physique and performance, and are said to be the most widely used AAS for such purposes.