Generic name: Phenazopyridine hydrochloride.

Other brand names: Azo-Standard, Baridium, Di-Azo, Diridone, Phenazodine, Pyridiate, Urodine.

Pyridium is a urinary analgesic. Analgesics reduce pain.

Quick Facts About Pyridium


Used to treat the pain, burning, urgency, frequency, and irritation caused by infection, trauma, catheters, or various surgical procedures in the lower urinary tract.

Pyridium Dosage

Take after meals, and exactly as prescribed by your doctor.

  • Usual adult dose: two 100-milligram tablets or one 100-milligram tablet taken 3 times per day after meals. Should not take for more than 2 days if you are also taking an antibiotic.
  • Usual child dose: not generally prescribed for children.
  • Missed dose: take as soon as possible, unless several hours have passed. In that case, do not take missed dose; go back to regular schedule. Do not double doses.

Pyridium Side Effects

Overdose symptoms:

changes in kidney, liver, and blood functioning. If you suspect an overdose, immediately seek medical attention.

Side effects: abdominal upset; headache; itching; rash; severe allergic reaction (rash, difficulty breathing, fever, rapid heartbeat, convulsions).

No known less common or rare Pyridium side effects.


No Pyridium drug interactions reported.

No known food/other substance interactions. 

Special Cautions

If pregnant or planning to become pregnant, inform your doctor immediately. Not known whether Pyridium appears in breast milk.

No special precautions apply to seniors.

Follow doctor’s instructions carefully for children.

  • Urine will turn orange to red in color, and may stain fabric. May also stain contact lenses.
  • Avoid if sensitive to or allergic to Pyridium, or if you have kidney disease.

Note: provides accurate and independent information prescription pills, over-the-counter medicines and natural products. This material is provided for educational purposes only and is not intended for medical advice, diagnosis or treatment. If you have questions about  dosage, or Pyridium side effects, please contact your healthcare provider