Your sister is very lucky to have a family member willing to get educated about her disease. That will help her more than you can know!

I have taken prednisone with no result. Immuran helped me more, it seemed. It will depend on several factors for your sister, best evaluated by her doctor - as long as the doctor is experienced in MG! Sometimes the medication is trial and error. What works well for one doesn't always work for another.

We'd welcome your sis with open arms and gladly answer any and all questions BOTH of you may have. I'm glad you've found us. This site has been just awesome for me, and I've had MG for 14 years (probably longer)! Wish I would have found it way earlier than I did.