Did you people suffering with PN know that commonly prescribed antibiotics in the Fluoroquinolone class can cause: peripheral neuropathy-eye and sinus problems-muscle pains-tendonitis-gastro-intestinal problems, and more. Some of the antibiotics responable are: Cipro,Levaquin,Avelox,Floxin. There are 13 total in this class of antibiotics that have side effects that can cause the above mentioned problems. The side effects are listed in the PDR, but most Drs. are unaware of this problem. A new warning was included in 2004 of the potential for severe and permanent PN with the use of Quinolones. There are several forums filled with people that have had thier lives ruined by these antibiotics. The damage can show up weeks to months after you are done taking the Quinolones. They can also cause severe insomnia and anxiety that goes away after a few weeks. This could be the cause of alot of the so called "idiopathic" PNs out there. Just google in - Quinolones and adverse drug reactions. I hope this helps. Nacho