crohn's disease, maintenance
"Have been on azathioprine for 7 years for Crohn's maintenance and have not had a single relapse in this time.  Had previously had allergic reaction but for some reason I now seem to be able to take it.  Currently suffering from dizziness but doubt this is to do with the azathioprine as I have had it so long.  Found that it works very quickly for me when I start taking it and is a lot better than being on steroids."