Please consult your physician before taking any medication. Generic Name: Phenazopyridine (fen-AY-zoe-PIR-i-deen) Brand Name: Examples include Azo-Gesic and Pyridium Phenazopyridine is used for: Relieving pain, burning, urgency, frequent urination, and discomfort caused by irritation of the lower urinary tract. It may also be used for other conditions as determined by your doctor. Phenazopyridine is a urinary tract analgesic. Exactly how Phenazopyridine works is not known. It is thought to work by relieving pain on the lining of the urinary tract. Phenazopyridine may also be used for purposes other than those listed in this medication guide.