Hi English Dave. I started getting PN symptoms about 3 1'2 months ago at the tail end of taking a long course of Cipro. It is the most likely cause as the other causes have been ruled out, according to my neurologist. I had read JesseM's post about his experience with a Fleuroquinolone antibiotic as a cause and was wondering, hoping, in fact, that he did indeed get better to the extent that he hoped. So as to give me some hope as well.