formestane is not a super-potent AI...unless thesinner is a doctor or lab tech with evidence showing otherwise, we'll have to stick with the existing literature on the substance which shows it being weaker than letro, dex and i think even aromasin. anyone who's used all these AIs will probably concur.
I guess I may have come off a little bolder than I had intended (and for some reason, I had a feeling you would say something
). The main point that I wanted to display is that it is quite powerful for something that's available OTC. Despite it's weaker than them, it is still quite comparable to letro, dex, and aromasin . I compared it to letro to show how strong it was.
This article by Author L. Rea has a table showing some relative strengths of AI's.
Here's some more info I was able to dig up:
Letrozole has been shown to reduce estrogen levels by 98% or greater. (Clin Cancer Res. 2005 Apr 15;11(8):2809-21)
Aromasin averages an 85% rate of estrogen suppression. (Eur. J. Cancer. 2000, May;36(8):976-82)
Aromidex, both .5mg and 1mg doses of Arimidex were shown to decrease estrogen by roughly 50%. (J Clin Endocrinol Metab 2000 Jul;85(7):2370-7, "Estrogen Suppression in Males" )
That 84% mentioned is a figure for formestane is one that I've seen posted a couple of times on this board (in older posts), but haven't been able to dig it up yet.