After being diagnosed with a UTI, I was put on sulfamethoxazole. The first day on the medication seemed to be fine but at about the 2nd-3rd day, I was not feeling like myself. I was watching some TV and I all of a sudden couldn't see anything. I got very hot, my heart beat was super-fast and then I completely blacked out. I also had continuous "spotting" while taking this pill, which never happens to me. I continued to feel out of sorts throughout the remainder of the prescription and I have the same symptoms from the UTI that I started with. This "drug" did nothing for me beside throwing my equilibrium off balance. I wouldn't recommend it to an enemy, let alone someone who needed medical help.