Phenazo Side Effects
Generic Name: phenazopyridine
Note: This page contains side effects data for the generic drug phenazopyridine. It is possible that some of the dosage forms included below may not apply to the brand name Phenazo.
For the Consumer
Applies to phenazopyridine: oral kit, oral tablet
As well as its needed effects, phenazopyridine (the active ingredient contained in Phenazo) may cause unwanted side effects that require medical attention.
If any of the following side effects occur while taking phenazopyridine, check with your doctor or nurse as soon as possible:Rare
- Blue or blue-purple color of skin
- fever and confusion
- shortness of breath, tightness in chest, wheezing, or troubled breathing
- skin rash
- sudden decrease in the amount of urine
- swelling of face, fingers, feet, and/or lower legs
- unusual tiredness or weakness
- weight gain
- yellow eyes or skin
Minor Side Effects
Some phenazopyridine side effects may not need any medical attention. As your body gets used to the medicine these side effects may disappear. Your health care professional may be able to help you prevent or reduce these side effects, but do check with them if any of the following side effects continue, or if you are concerned about them:Less common or rare:
- itching of the skin
- stomach cramps or pain
For Healthcare Professionals
Applies to phenazopyridine: compounding powder, oral tablet
Nervous system side effects have included headache.[Ref]
Dermatologic side effects have included rash and pruritus.[Ref]
Gastrointestinal side effects have included occasional upset.[Ref]
Genitourinary side effects have included an orange to red discoloration of the urine.[Ref]
1. "Product Information. Pyridium (phenazopyridine)." Warner Chilcott Laboratories, Rockaway, NJ.
It is possible that some side effects of Phenazo may not have been reported. These can be reported to the FDA here. Always consult a healthcare professional for medical advice.
More about Phenazo (phenazopyridine)
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