Nitrofurantoin
"I have a hyper sensitive system to medications, but didn't experience most of these symptoms. I did, however, have muscle and tendon issues. I've had many UTI's over the years and after taking the full week's dosage,  This medication ddi not work at all for me. I had 2 pill/day x 7 days got 0 results. Still in pain and have the urgency thing going on. Doctor wanted to refer me to a urologist. What a racket!!! Give me my Cipro back. It's the ONLY thing that works for me."