Phenazopyridine
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From MedlinePlus, U.S. National Library of Medicine
Dosing in kidney impairment
CONTRAINDICATIONS Phenazopyridine HCl should not be used in patients who have previously exhibited hypersensitivity to it. The use of Phenazopyridine HCl is contraindicated in patients with renal insufficiency.
Contraindications
Phenazopyridine HCl should not be used in patients who have previously exhibited hypersensitivity to it. The use of Phenazopyridine HCl is contraindicated in patients with renal insufficiency.
Safety data
Reported adverse events (FAERS)
Liver injury (LiverTox)
LiverTox has no chapter for phenazopyridine. Check the label's hepatic warnings.
Pregnancy and lactation
Pregnancy
Pregnancy Reproduction studies have been performed in rats at doses up to 50 mg/kg/day and have revealed no evidence of impaired fertility or harm to the fetus due to Phenazopyridine HCl. There are, however, no adequate and well controlled studies in pregnant women. Because animal reproduction studies are not always predictive of human response, this drug should be used during pregnancy only if clearly needed.
Lactation
Nursing Mothers No information is available on the appearance of Phenazopyridine HCl, or its metabolites in human milk.
Breastfeeding (LactMed)
The safety of phenazopyridine is not established in infants or during breastfeeding. Because it can cause methemoglobinemia, sulfhemoglobinemia, and hemolytic anemia, it should be avoided while breastfeeding, especially with an infant under 1 month of age or with glucose-6-phosphate dehydrogenase (G6PD) deficiency.
Supply and cost
Drug shortage status
Recalls (last 24 months)
Therapeutic equivalence (Orange Book)
Price ladder
Not the price at the counterThese are not what a patient pays at the pharmacy counter. They are what pharmacies, health plans, and government buyers pay, before manufacturer rebates. A patient's cost depends on their insurance (copay, coinsurance, or deductible) or the pharmacy's cash price.