You should be aware that Proviron is also an estrogen antagonist which prevents the aromatization of steroids. Unlike the anti estrogen Nolvadex which only blocks the estrogen receptors (see Nolvadex) Proviron already prevents the aromatizing of steroids. Therefore gynecomastia and increased water retention are successfully blocked. Since Proviron strongly suppresses the forming of estrogens no rebound effect occurs after discontinuation of use of the compound as is the case with, for example, Nolvadex where an aromatization of the steroids is not prevented. One can say that Nolvadex cures the problem of aromatization at its root while Nolvadex simply cures the symptoms. For this reason male athletes should prefer Proviron to Nolvadex. With Proviron the athlete obtains more muscle hardness since the androgen level is increased and the estrogen concentration remains low. This, in particular, is noted positively during the preparation for a competition when used in combination with a diet. Female athletes who naturally have a higher estrogen level often supplement their steroid intake with Proviron resulting in an increased muscle hardness. In the past it was common for bodybuilders to take a daily dose of one 25 mg tablet over several weeks, sometimes even months, in order to appear hard all year round. This was especially important for athletes appearances at guest performances, seminars and photo sessions. Today Clenbuterol is usually taken over the entire year since possible virilization symptoms cannot occur which is not yet the case with Proviron. Since Proviron is very effective male athletes usually need only 50 mg/day which means that the athlete usually takes one 25 mg tablet in the morning and another 25 mg tablet in the evening. In some cases one 25 mg tablet per day is sufficient. When combining Proviron with Nolvadex (50 mg Proviron/day and 20 mg Nolvadex/day) this will lead to an almost complete suppression of estrogen.
The side effects of Proviron in men are low at a dosage of 2-3 tablets/day so that Proviron, taken for example in combination with a steroid cycle, can be used comparatively without risk over several weeks. Since Proviron is well-tolerated by the liver liver dysfunctions do not occur in the given dosages. For athletes who are used to acting under the motto "more is better" the intake of Proviron could have a paradoxical effect. The most common side effect of Proviron-or in this case, secondary symptom- is in part a distinct sexual overstimulation and in some cases continuous penis erection. Since this condition can be painful and lead to possible damages, a lower dosage or discontinuing the compound are the only sensible solutions. Female athletes should use Proviron with caution since possible androgenic side effects cannot be excluded. Women who want to give Proviron a try should not take more than one 25 mg tablet per day. Higher dosages and periods of intake of more than four weeks considerably increase the risk of virilization symptoms. Female athletes who have no difficulties with Proviron obtain good results with 25 mg Proviron/day and 20 mg Nolvadex/day and, in combination with a diet, report an accelerated fat breakdown and continuously harder muscles. In clinical situations Proviron is generally used to treat various types of sexual dysfunction, which often result from a low endogenous testosterone level. Proviron can usually reverse problems of sexual disinterest and impotency, and it is sometimes used to increase the sperm count. Proviron does not stimulate the body to produce testosterone, but mesterolone is simply an oral androgen substitute that is used to compensate for a lack of the natural male androgen. Although mesterolone is strongly androgenic, the anabolic effect of Proviron is considered too weak for muscle building purposes.