Did your neuro say anything about discontinuing any of your meds? I know they want me off the Mestinon 24 hrs prior to the SFEMG I'm going in for. I would call and remind them that you are on all of this and see if you should stop taking any of them. Maybe he wants to see if anything shows at the dosage you're at? I'm not sure. And I don't know if you are underdosed if that would show while you're on the Mestinon. I'll be interested in hearing what you find out.