I have been taking 120mg of Pyridostigimine BR a day for 3 years for my GI flairs. It has been great, but now it is not working and I have had several episodes of the breathing problems, dizziness blured vision, difficulty thinking and dehydration. I have been hospitalized 4 times and no one has recognized the symptons.They have blamed so many other things only to be proved wrong when the test are done. I have used this drug for my GI motility and now that itisn't working I am going back to Relsstor, an injectable to get my gut moving. I have Autonomic Neuropathy so my automatic systems don't always work right. (Whatever that is.) Help..