Also known as Durabolin is a steroid almost identical to Deca Durabolin except that is a faster acting compound. NP gets into the system rapidly and is active for less than a week. Therefore shots must be administered frequently in the area of two times weekly. Usual dose is from 200mg to 600mg weekly. Deca Durabolin could be taken as little as once every 10 days and exhibit full efficacy. Durabolin (NP) can yield dramatic results similar to Deca Durabolin; in fact, it is one of the safest, most effective steroids available to athletes.
The side effects of Durabolin are few. Water retention, high blood pressure, an elevated estrogen level, and virilization symptoms occur less often with Durabolin than with Deca Durabolin. Female athletes therefore take Durabolin in weekly intervals since, due to its short duration of effect, no undesirable concentration of androgen takes place.