Vials

Driada medical "Nandrolone" (chemical name - 19-nortestosterone) - an anabolic steroid can be formed in the human body after intense or prolonged physical exertion or during pregnancy, the concentration of its main metabolite 19-norandrosterone in urine, but in very low concentrations. Structurally, nandrolone differs from testosterone due to the absence of a carbon atom in the 19th position (hence the name 19-nortestosterone) and this makes it more similar to progestins. Due to its progestin origin, nandrolone displays a significantly lower androgenic effect than testosterone, however, the stabilization of progesterone receptors causes unique side effects. Another difference is that, unlike testosterone, this is converted by the enzyme 5-alpha reductase into a powerful androgen - dihydrotestosterone, which is responsible for the development of most side effects. In contrast, nandrolone is converted by 5-alpha reductase into an extremely weak androgen – dihydronandrolone.