Hi Krysse,
I adjust my mestinon depending on the severity of the symptoms. My MG comes and goes as it pleases so when the symptoms increase I take a little more of the mestinon but I take a fairly low dose to begin with. It should be noted that if you take too much mestinon it will mimic the symptoms of the MG so you must be careful not to take more than needed.
I am also on Prednisone and trying my best to get the DR. to get me off it. I started at 60mg per day but I was also a breath away from being hospitalized because of the MG. I always refused to be on it but really had no choice. It has caused my blood pressure to soar and as a result I am now on blood pressure meds. Never had high blood pressure in my life until I was put on the prednisone. Most people can handle the drug better than I with less side affects but if he can live without it I am sure he will be better off.
Don't know that taking either med with supplements is a problem.
Al