I was on pred when I began Imuran and after tapering off that drug, I am only on Imuran and have never taken anything else since. Colazol and Asacol didnt work for my pancolitis, so this is it for me. Good thing, as I have hard enough time taking one medicine!
I have had my longest adult remission ever with just Imuran, so I am convinced this is enough for me.