hi! hope everyone is having a betterday than yesterday, i'm in same boat. just on mestinon for 3 months now but neuro is saying same thing. her reasoning is that in spite of all neg tests ,on mestinon i feel better not 100% and double vis almost gone. since imuran takes minimium of 6-9 months to work,it makes more sense to start , check reaction to it before i need it. i'm on the fence as you are. i will talk to neuroptha. before doing any changes.it makes sense to me when explained out to me but like you i am weary of any changes. but then again ,there have been sooo many changes lately in my health what is one more. also i would like to figure out any reactions and side effects to any med before i am in a downhill slope! at least we have a firm diagnosis-i pray for those that are in limbo at this time!!