Hi,
The only medication of these that I have taken was Imuran. At the time it was for Crohn's Disease. Was on it for a year. It takes about three months for it to start working in your system. Usually they will do blood work on you weekly for the first two months and then once a month. Biggest concerns are white blood cell count. There has been some people that have taken it have gotten Luekemia. Very rare they say with the dose they give for my problem and more and likely the same for you.
This medication was normally used for things like transplant patients. It is an immuno modulator. The main side affect from this medication that I had was hair loss. Didn't need much help with that.
I'm being tested for MG now also and my main problem is double vision. So might get the same suggestions from my Dr.
Only thing my Dr. told me about Imuran is if you take it for a long period and then stop, if they want you to take it again it may not work as well.
Good Luck and let me know which one they put you on if you can.
Take care,
Dennis