Mestinon does not provide what our body destroys. It delays the acetocholene mop up at the neuro-muscular junction. Prednisone and other steroids are taken because they supress the immune system - this reduces the amount of damage done at the neuro-muscular junction. IVIG and Plasmapheresis are ways to reduce the bad anti-bodies in your system.

This site should give you a good high-level start on what's going on:
http://www.medicinenet.com/myastheni...is/article.htm

The sample pdf from the book you, me an myasthenia gravis has a great explanation of what it is:

http://www.youmeandmg.com/YouMeAndMG-Chapter-1.pdf


Cheers,

Brian