Ciprofloxacin
"I got a UTI while I'm holiday in Spain. I was given ciprofloxacin to take for seven days.  It took four days before I experienced any relief. Even at that I still could feel the UTI symptoms. I had a pounding headache for the first 3 days of taking it but I didn't care if it was going to help me with the pain of my UTI. The medication takes a long time to start working and only for the painkillers the doctor also prescribed I wouldn't have had any relief. It's seems very weak. When you have a UTI you need the medicine to start working hard right away because the pain and discomfort is so horrendous!! Sometimes I wonder do doctors really understand the pain, discomfort and stress a UTI or bladder infection can cause."