
Originally Posted by
Turkish Juicer
If you had to go from Arimidex to Aromasin, you would have run into elevated estrogen and its sides for sure, simply because it takes a while for Aromasin to start working; whereas, Arimidex works very quickly.
In sum, switch to your cycle of Arimidex as of now. Keep the dose on the low side and intake frequency should be EOD.
Yes, there is a risk of crashing your E2 obviously because you will still have Aromasin somewhat active in your system as Arimidex starts to kick-in and do its thing, and I don't think that any of use here can give you a definitive answer regarding what could possibly happen to your E2 levels in this very specific scenario.