I took Levaquin for years as my alternate to TOBI - One month on and one month off when I wasn't on my TOBI month. I didn't have issues until about a yr after taking it the first time. I had joint pain and tenderness and ended up breaking out with leukocytoclastic vasculitis - basically if you look it up its just plain nasty. I had that for a few months until they realized that it flare up about a week after I started my months worth of levaquin, would clear up a week into my TOBI dosage and then would come back again with Levaquin. I haven't taken it since, that was 10 years ago. I can take Cipro without problems though and use that now as my first go abx when I have issues.
Lindsey