Proviron is the Schering brand name for the oral androgen mesterolone (methyl-dihydrotestosterone). Proviron is not an anabolic but a very powerful anti-estrogen. It prevents gynecomastia while reducing fat and water retention, it allows the relaunch of testosterone production in the testicles and prevents the aromatizing of anabolic steroids. Proviron can be combined with the Nolvadex to increase its effectiveness. It is indeed clear that Proviron and Nolvadex are both anti-estrogens whose mechanisms of action are different and complementary, and that’s why the combination of these two products is so effective.
Proviron prevents aromatization of steroids, Nolvadex blocks the estrogen receptor cells, preventing it from acting. It is therefore a formidable tandem.