Sorry!..... I have only been on mestinon for 2 months. It does seem to help me so far. I hope this is the med that they keep me on, don't want to go on prednisone, heard too many bad things and saw the look that it causes people. I just try to stay stress free.....it helps! I also have a priszm on one of my lenses on my eye seeing glasses to help with the double vision. The med seems to help my droopy eye lids. I will check out the MG forums. Thanks