Mesterolone 25 is used to treat potency disturbances, infertility, and declining physical and
mental M alertness in the aging male due to reduced androgen formation. It is an oral
androgen which does not aromatize estrogen. It does not stimulate the body to produce
testosterone but may act as an oral androgen substitute to compensate for a lack of the
natural male androgen. It is suitable för treatment of all conditions caused by deficient
endogenous androgen formation without impairment of spermato- genesis. It is effective as
an anti-aromatase in the body, preventing or slowing the conversion of androgens into
estrogens. Mesterolone 25 is well tolerated by the liver.