When I was put on mestinnon in the hosp during a myasthenic crisis it was 60mg x3 daily. I ended up back in the hosp about 4 days later because I was trying to do basic things at home. I hadnt retruned to work yet and had tried a quik trip to the groc store but fell twice so had to go home without buying anything.
At the second visit it was because my breathing had worsened as I ttried to to do a few of these things. The put me on 75mg x 3 and let me go home. I could feel the increased strength. But a couple days later I had gone to Walgreens and was excited that my body was doing so much better yet when I went to check out my mouth had this locked up thing that slurrred my speech. I was also having strong bouts of twitching in my diaphagm when I would sneeze or yawn or lay down. I called the neuro after the slurred speech. He said back to 6omg. But at 60mg I couldnt return to my partitme job so I lost my job. It works better for my breathing than my legs and such. But only in the context of limited activity.

During the winter I get better from the cold and my body starts acting like it needs less mestinon so I had to take less in the winter.
Annie59