Ciprofloxacin
"I was put on Cipro for an acute kidney infection (not UTI, actual Pylephronetis (sp)) 6 days ago, due to be a 7 day course in which I was told I would start feeling better by the 3rd day. I am on day 6 and I am worse off than before starting this antibiotic. My fever is fluctuating between 99-102.5, I feel like I've been hit by a train--I actually feel worse than when I had swine flu in 09!--and I feel like I'm being punched in the kidneys (former MMA, been punched in kidneys before, know what it feels like) constantly. Would not recommend Cipro for kidney infection"