Proviron (mesterolone) is an oral androgen preparation with minimal central inhibitory effects, meaning it does not significantly suppress testicular function. Instead, Proviron is primarily used to address androgen deficiencies, which tend to develop gradually with increasing age.
By supplementing declining endogenous androgen levels, Proviron is effective in treating conditions associated with low natural testosterone production. At recommended therapeutic dosages, it does not impair spermatogenesis, making it suitable for men concerned with maintaining fertility.
Another key advantage of Proviron is its strong tolerability. Unlike many other oral androgens, Proviron is well tolerated by the liver, which adds to its medical and therapeutic value.
In sports pharmacology, Proviron is often utilized for its ability to enhance androgenic tone, increase libido, and improve muscle hardness without causing estrogenic side effects, since it does not aromatize.









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