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Drugs reference index «Phenazopyridine hydrochloride»

Phenazopyridine hydrochloride

Phenazopyridine hydrochloride

Brand names: Pyridium

Why is Phenazopyridine hydrochloride prescribed?

Pyridium is a urinary tract analgesic that helps relieve the pain, burning, urgency, frequency, and irritation caused by infection, trauma, catheters, or various surgical procedures in the lower urinary tract. Pyridium is indicated for short-term use and can only relieve symptoms; it is not a treatment for the underlying cause of the symptoms.

Most important fact about Phenazopyridine hydrochloride

Pyridium produces an orange to red color in urine, and may stain fabric. Staining of contact lenses has also been reported.

How should you take Phenazopyridine hydrochloride?

Take Pyridium after meals, exactly as prescribed.

  • If you miss a dose...Take it as soon as you remember. If it is almost time for your next dose, skip the one you missed and go back to your regular schedule. Never take 2 doses at the same time.
  • Storage instructions...Store at room temperature.

What side effects may occur?

Side effects cannot be anticipated. If any occur or change in intensity, inform your doctor as soon as possible. Only your doctor can determine if it is safe for you to continue taking Pyridium.

  • Side effects may include:Headache, itching, rash, severe allergic reaction (rash, difficulty breathing, fever, rapid heartbeat, convulsions), upset stomach

Why should Phenazopyridine hydrochloride not be prescribed?

Pyridium should be avoided if you have kidney disease, or if you are sensitive to or have ever had an allergic reaction to it.

Special warnings about Phenazopyridine hydrochloride

If your skin or the whites of your eyes develop a yellowish tone, it may indicate that your kidneys are not eliminating the medication as they should. Notify your doctor immediately. If you are older, your doctor will watch you more closely, since the kidneys work less effectively as we age.

Possible food and drug interactions when taking Phenazopyridine hydrochloride

No interactions have been reported.

Special information if you are pregnant or breastfeeding

The effects of Pyridium during pregnancy have not been adequately studied. If you are pregnant or plan to become pregnant, inform your doctor immediately. To date, there is no information on whether Pyridium appears in breast milk. If Phenazopyridine hydrochloride is essential to your health, your doctor may advise you to stop breastfeeding until your treatment with Pyridium is finished.

Recommended dosage for Phenazopyridine hydrochloride


The usual dose is two 100-milligram tablets or one 200-milligram tablet 3 times a day after meals.

You should not take Pyridium for more than 2 days if you are also taking an antibiotic for the treatment of a urinary tract infection.


Any medication taken in excess can have serious consequences. If you suspect an overdose, seek emergency medical treatment immediately.

  • Symptoms of Pyridium overdose may include:Blood disorders, bluish skin color, impaired kidney and liver function
  • Azo-Gesic Advanced Consumer (Micromedex) - Includes Dosage Information
  • Azo-Gesic MedFacts Consumer Leaflet (Wolters Kluwer)
  • Pyridium Consumer Overview

See Also...

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