Since most anabolic/androgenic steroids will suppress endogenous testosterone production, Nolvadex can help restore a balance in hormone levels. This testosterone stimulating effect of Nolvadex is an added benefit when preparing to conclude a steroid cycle. It is recommended to be stacked with highly aromatizable steroids like Dianabol and testosterone.
It is important to start a PCT once you finished a steroid cycle to avoid a dramatic loss of the mass gained. The question on how soon to initiate a PCT depends on the kind of steroids you used. If your cycle is comprised of orals, which have relatively the shortest effect on the body, it is advised to start immediately. Some say PCT can begin as early as the last day of the steroid cycle. If short-acting esters or water-based injectables, PCT is recommended 4-7 days after the last injection. In the case of long-acting esters, it should be around 10-14 days after the last injection.
To prevent estrogenic side effects normally 10 mg/day is sufficient, a dosage which also keeps low the risk of reducing the effect of simultaneously taken steroids. A typical daily dosage taken by athletes is in the range of 10 to 30mg.
Symptoms of gyno can occur when using a cycle which contains drugs which aromatize, including (but not limited to) testosterones such as enanthate, cypionate, and suspension. If problems of gyno show up during a cycle, the use of 20-30 mg of Nolvadex should take care of the problem, and this quantity of Nolvadex should be used until several days after symptoms subside just to be safe.