The use of Phenazopyridine Hydrochloride is contraindicated in patients with renal insufficiency. ComWhat inside Pyridium Plus Pyridium Plus Active Ingredients: butabarbital sodium, hyoscyamine sulfate, phenazopyridine hydrochloride, details. phenazopyridine verkossa NavigationHomeAbout this weblogGuestbookBack to blogigoAdd this weblog to my favourites LoginUsernamePasswordForgot password?RegisterWhy register?Important: the weblog owner is solely responsible for all data and content on this site. Where can get more information? Your pharmacist can provide more information about phenazopyridine. Indications and Usage Symptomatic relief of pain, burning, urgency, frequency and other discomforts arising from irritation of lower urinary tract mucosa.