Formestane primus selectivus, typus I *, inhibitor steroidalis aromatase usus est in curatione estrogen-receptor positivum carcinomate pectoris post-menopausalis in mulieribus. Formestane estrogenum productionem supprimit ex steroidibus anabolicis vel prohormones. Formestane est etiam prohormonum 4-hydroxytestosteronis, activum moleculas infirma androgenic activitatem mitis aromatase inhibitoris activitatem. It is listed as a prohibited substance by the World …