i would DEFINITELY try Azathioprine before surgery.
i've been on sulpha (had side effects), asacol (got to 12 per day..but they started not working as well), prednisone....
I actually was started on Azathioprine 100mg w/ some unpleasant SE...headachess ++ and abdo pain...but was convinced to try it again a few months later (now on 150mg) and doing well...headaches--yes...but I take all the meds at dinner so I'm more alert in the day. I've also had ++ success on remicade (and only stopped in February 2009 to get pregnant)....
so- long story short---we all have our things we don't want to do (mine is surgery)...so i'll likely try all things before that!
Sarah
33 yo female
UC dx in 1996.