Dysuria
"I took Pyridium for my urinary tract infection. I have taken this medication many times and it works WONDERS. Takes away that uncomfy pressure and burning sensation. When I take it, it takes about 45 - 1 hr to kick in initially and then depending how bad my urinary tract infection is I take it every 4 hours. 

Usually I get no symptoms however this time taking it I do, I have gotten blurred vision, bad drowsiness, cold sweats and hot flashes, BUT they are all manageable!"