Nandrolone decanoate – one of the most popular anabolic steroids in the world, because of its favorable properties. In its structure, nandrolone is similar to testosterone, and differs from it only in the absence of carbon in the 19th position, for which it is also called 19 nortestosterone. This change makes the drug much less androgenic, compared with testosterone. Also, this change plays a role in terms of side effects. If you remember, testosterone is converted into dihydrotestosterone, which causes the skin to become greasy, acne: then the nandrolone is converted to dihydronandrolone, a very inactive metabolite, so androgenic side effects will practically not bother you with the use of Nandrolone decanoate (Deca).
The structural difference between nandrolone and testosterone is the absence of a carbon atom in the 19th position (hence the name 19-nortestosterone) and this makes it more like a progestin. However, because of this interaction with progesterone receptors, the drug entails a number of side effects, of which we speak later.
Another of the main differences is that testosterone in the body is gradually converted by the enzyme 5-alpha reductase into a powerful androgen-dihydrotestosterone, because of which most of the side effects are formed. Nandrolone, on the contrary, is converted by 5-alpha reductase into an extremely weak androgen-dihydronandrolone, which has virtually no effect on the body and does not cause side effects. However, this can be one of the reasons for lowering the libido during the course (due to a drop in the level of androgens in the blood).
Course Nandrolone decanoate lasts for 8-10 weeks, while some athletes used it up to six months, gradually increasing the dosage level. Injections are usually performed up to 1 time per week. The recommended dose of nandrolone is about 200-400 mg per week, but you should know that the initial phase of the drug should start with lower dosages. The maximum dosage is 600 mg per week, but as with all other drugs, with increasing dosages, the risk of undesirable side effects increases.