Sulfamethoxazole / trimethoprim
"Ive been taking this medication for 5 days straight twice a day, today (the 5th day) I couldn't take the last pill, I've been having nausea, fatigue, and a terrible headache for 5 days straight. I also had bright red eyes and I couldn't sleep because it all hurt so much, and my lower back is very sore, the uti had gone away so I figured not taking it would do more good than bad. Worst experience with a medication I've had, it got the job done but the side effects are terrible especially when you're a straight A student needing to keep up with school."