I am in the processo of finding this out right now. I have been on Imuran for the last 2.5 years. I started on 200 mg and after about
6 months lowered my dosage to 150 mg. No negative with that adjustment. The 200 mg put me in remission and the 150 mg has kept me there. I have added canasa rectal suppositories since I have a small patch of inflammation remaining in the rectum. I have requested that I be allowed to drop the dosage to 100 mg. My GI's initial reaction has been to keep me on the 150 mg dosage since I am doing so well on it but I have insisted on lowering the dosage to see if I can get off of it all together. He has relented and he stated he has heard of others getting off Imuran and staying in remission with asa meds. Hence the graduated decrease. I am having a flex next month, if my rectum is clean he will lower to 100 mg. I will let you know how it goes.