PHENAZOPYRIDINE (fen az oh PEER i deen) relieves symptoms caused by irritation of the urinary tract, such as pain, burning, and passing frequent small amounts of urine. It works by numbing the lining of the urinary tract, which decreases pain. It is not an antibiotic. It will not treat a urinary tract infection (UTI).
What should I tell my care team before I take this medication?
They need to know if you have any of these conditions:
Glucose-6-phosphate dehydrogenase (G6PD) deficiency
An unusual or allergic reaction to phenazopyridine, other medications, foods, dyes, or preservatives
Pregnant or trying to get pregnant
How should I use this medication?
Take this medication by mouth with a glass of water. Follow the directions on the product label. Take after meals. Take your doses at regular intervals. Do not take your medication more often than directed. Do not skip doses or stop your medication early even if you feel better. Do not stop taking except on your care team's advice.
Talk to your care team about the use of this medication in children. Special care may be needed.
What if I miss a dose?
If you miss a dose, take it as soon as you can. If it is almost time for your next dose, take only that dose. Do not take double or extra doses.
What may interact with this medication?
Interactions are not expected.
What side effects may I notice from receiving this medication?
Side effects that you should report to your care team as soon as possible:
Allergic reactions—skin rash, itching, hives, swelling of the face, lips, tongue, or throat
Side effects that usually do not require medical attention (report to your care team if they continue or are bothersome):
Dark yellow, orange, red, or brown urine
What should I watch for while using this medication?
Tell your care team if your symptoms do not improve or if they get worse.
This medication colors body fluids red. This effect is harmless and will go away after you are done taking the medication. It will change urine to a dark orange or red color. The red color may stain clothing. Soft contact lenses may become permanently stained. It is best not to wear soft contact lenses while taking this medication.
If you have diabetes you may get a false positive result for sugar in your urine. Talk to your care team.
Where should I keep my medication?
Keep out of the reach of children and pets.
Store at room temperature between 15 and 30 degrees C (59 and 86 degrees F). Protect from light and moisture. Throw away any unused medication after the expiration date.
K Health articles are all written and reviewed by MDs, PhDs, NPs, or PharmDs and are for informational purposes only. This information does not constitute and should not be relied on for professional medical advice. Always talk to your doctor about the risks and benefits of any treatment.
This information is educational only and should not be construed as specific instructions for individual patients nor as a substitute for medical advice, diagnosis or treatment. Talk to your health care provider or pharmacist about the information and instructions. K Health assumes no liability for any use or reliance on this information.