I didn't know about all those drugs and what could happen either. I did indeed have a host of problems I now think is due to cipro, levaquin, and several others I was on. Had three tendons rupture in my ankle with no apparant cause or injury. They wanted to do tendon transfers which I declined on as I have PN. The doctors do not tell you the risks associated with these medications. I had some serious illness that required the antibiotics and a disease specialist, who put me on the legaquin. What a mess....Docs. should tell folks the risks first. ginnie