Nitrofurantoin
"Taking this medicine for a prostate infection, I previously took another antibiotic that did nothing as it was a wide spectrum one until my results were in. I have struggled taking these pills, because they do make you feel a bit gassy and also I have struggled to get my breath a bit. My main worry was being sick on them, and because I am forcing myself to eat four fairly big meals a day I have not suffered half as much on that side as I thought. After reading all of the horror stories on here, it has not yet been quite as bad as I had thought it might be. I am about half of the way through the course, taking 100mg 4x a day. Going to try to get to the end, starting to feel a bit better. My urine is clear again but I still have the urge to go."