Mesterolone | Proviron

Proviron is a synthetic androgen that does not have anabolic qualities. In medicine, mesterolone is used in the treatment of disorders caused by deficit of male sex hormones. Therefore, many athletes use it at the end of the steroid course to raise dropped testosterone production.

Proviron does not affect its own testosterone production, but as mentioned above, partially or completely eliminates side effects caused by a lack of testosterone. In particular, due to a lack of testosterone, potency disorders that can occur when stop taking steroids, or infertility caused by a reduced amount of sperm and its quality.

Therefore, Proviron will be able to increase reduced sexual interest and potency during or when the steroid course is discontinued. But it doesn’t save the strength and mass gains after the cycle. For such purposes there are other drugs (see HCG and Fludestrin). Therefore, Mesterolone by many is considered unfortunately, as a useless drug (Daniel Duchene, Underground Steroids – Book 2: “I don’t see the benefits of Proviron when it comes to sports achievements”), since most do not know the main area of mesterolone use in bodybuilding. Read more

Proviron is also an estrogen antagonist that prevents the aromatization caused by steroids use. Unlike the antiestrogen Nolvadex, which blocks estrogen receptors (see Tamoxifen), Proviron prevents the aromatization of steroids themselves. In this way, gynecomastia and excessive water retention are prevented. As Mesterolone strongly inhibits the extra conversion of estrogens, when user stop taking the drug, the opposite effect does not occur, as in case with Nolvadex, where aromatization of steroids is not prevented. We can say that Proviron fights with the root of aromatization, while Tamoxifen fights the symptoms. Athletes – men should prefer Proviron to Nolvadex.

With Proviron as the level of androgens rises and the concentration of estrogen is low, the athlete will achieve better muscle hardness. This effect especially can be noticed when preparing in combination with a diet for the competition. Athletes, by nature having a predisposition to higher level of estrogen, often include Mesterolone to their steroid cycle, which additionally increase muscle density. It used to be common among professional bodybuilders to take 25 mg daily for several weeks, i.e. one 25 mg tablet per day, sometimes for months, to look lean for a whole year.

Due to the effectiveness of Mesterolone it will be enough to take only 50 mg per day. It is better to divide the daily dose into 2 equal and to consume one in the morning and other in the evening. One such pill is quite enough. In case of combination Tamoxifen and Mesterolone (50 mg of Proviron daily and 20 mg of Nolvadex daily) will completely suppressed the estrogen. In case if you have doubt in such combo then take Proviron 50mg and 500 to 1000 mg of Fludestrin per day for even better results. Because Fludestrin is an exceptionally expensive medicine, most athletes do not even mention about this combination.

There are almost no side effects if you take Proviron at a dose of 2 to 3 tablets per day. Consequently Proviron in combination with steroids can be taken relatively safe for more than several weeks. Proviron is very well tolerated by the liver and there will be no liver dysfunction in case of recommended dosages use. For athletes who are accustomed to working under the “more is better” division, taking Proviron might cause health issues. In the instructions for the use of his drug, Wistimon “Jenapharm” writes: “At high dosages, mesterolone can lead to a retention of electrolytes and water in the body, and as a result to edema.” Those who does not exceed 2 to 4 tablets daily should not worry about this.

Female athletes achieve good results with 25 mg of Proviron per day. They say that in combination with a diet, accelerated fat burning and rapid hardening of muscles occur.

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Proviron Schering 50tabs [25mg/tab]


Mesviron 25 Genesis 100tabs [25mg/tab]


Proviron Magnus Pharma 50tabs [25mg/tab]

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