What Is The Current Opinion Regarding Taking Arimidex At The

What is the current opinion regarding taking Arimidex at the same time as radiation? My MO told me today to start my prescription immediately; I presume I will be starting radiation within a week or so as I'm to meet with that team next week to set up my simulation. I thought nothing of it until a friend told me she was instructed to start Arimidex at the conclusion of her radiation treatment and was concerned that I'll be doing the treatments concurrently. I plan to follow my physician's orders but wanted some information in order to respond to my friend. Friends and their opinions.... it's beginning ;)