I was on 100mg imuran for a couple of months before backing my dosage down to 75mg. I got terrible nausea from it. Also,the muscle thing...it's like they are really tight! When I stand up its hard and painful to start walking, but then it goes away. Really weird side-effect. After I walk just a few steps it subsides...
But the plus side to the imuran for me has been, weight gain, solids (now I can leave my house) before I had no warning time with lots of D, Not much joint pain now like before. And I have more energy.
I hate all meds for the side effects they give, sometimes they are worse than the condition itself! but for me, the trade off of symptoms was why I am thinking/hoping imuran will work.
I hope you have better days ahead. This disease can be a mind blower! Maybe ask GI about backing down the dosage? Those spasms sound painful. feel better soon. Kathy