It seems that you are having a positive effect from the drug. The drug is not, however, benign for those with or without MG/CMS/LEMS.

http://www.ncbi.nlm.nih.gov/pubmed/1757242

http://www.fda.gov/downloads/drugs/e.../ucm133154.pdf

http://www.medsafe.govt.nz/profs/dat...estinontab.pdf

http://neuromuscular.wustl.edu/mtime/mgrx.html

Have your doctors done enough testing to rule MG in or out?

Annie