Hi Ken. I haven't done any testing in this direction; I wouldnt know what to test for. Rather, I became aware that accutane can have those effects, which I didnt know before. It was damaging enough to cause a huge depression, and I can't think of many other things which could cause havoc in my nervous system. It was the worst/most potent subtance I ever took. With regards to those plants, well.. has any of that ever helped anyone? Unfortunately, I haven't found many entries on accutane/isotretinoin on this forum, or any other site that I trust, so that's difficult to tell. I have been diagnosed with MMN and I'm supposed to be treated with IVIg's, but the doctors didnt know about iotretinoin, because I myself forgot about it. I wonder if IVIg's are any good for me.