Adex will lower your estro by about 50-60% of course if you keep taking it that percentage accumulates so you lower 50% by another 50% and so on, you can easily end up with your estradiol in the singles if you take it for long enough at a high enough dose and you aren't converting much estrogen from aromatizing gear (using low dose of test high dose AI). Adex imo is the best suited for trt purposes, reason being the rate of which it lowers estrogen compared to the other AI?s is smaller. For trt purposes you only need 1mg of total adex per week to keep estro in range (e2= 20-25ng/dl=sweet spot)

Why adex is bad for blasting: This small posting has been posted on another forum by a doctor not my words but reflects a lot of my experiences with adex

"Adex is not particularly effective for drugs that tend to be subject to peripheral aromatization, methandrostanolone in particular. Often a full 2mg daily of Adex will still not stop dbol bloat and cramping
Arimidex is best at E1 suppression (tissue affinity, gonadal, adrenal, etc and because its a competitive inhibitor). it suppress e1 at even the lowest of doses, but takes rather high doses to see significant impact on peripheral aromatase"

While cutting with a low test dose and non aromatizing gear is as good as an AI as any but while bulking with compounds that aromatize heavily Adex is the worst AI you can use. No matter how much you use you will still be much more bloated than you would by using aromasin/letro

Common dose while blasting: 0.5mg ed/eod
Trt dosage: 0.25mg eod, 1mg e6-7d

http://www.eroids.com/forum/steroids-qa/pct-anti-estrogens/ai-as-needed-...