Drug profile
Phenazopyridine
Adult, child, renal, hepatic, pregnancy and breastfeeding information, with the source named on every line.
DRUG INFORMATION
ADULT
- mg Tablets: Average adult dosage is two tablets 3 times a day after meals. 200 mg
Tablets: Average adult dosage is one tablet 3 times a day after meals.
Source: US FDA label for phenazopyridine (Phenazopyridine Hydrochloride), section
'dosage and administration', retrieved 2026-08-29
- mg Tablets: Average adult dosage is two tablets 3 times a day after meals. 200 mg
Tablets: Average adult dosage is one tablet 3 times a day after meals. When used
concomitantly with an antibacterial agent for the treatment of a urinary tract
infection, the administration of Phenazopyridine Hydrochloride should not exceed 2
days.
Source: US FDA label for phenazopyridine (Phenazopyridine Hydrochloride), section
'dosage and administration', retrieved 2026-08-29
CHILD
- Children Adequate and well-controlled studies have not been performed in the
pediatric population. No pediatric-specific problems have been documented.
Source: US FDA label for phenazopyridine (Phenazopyridine Hydrochloride), section
'pediatric use', retrieved 2026-08-29
RENAL IMPAIRMENT
- No kidney-impairment dose in this label. Not a statement that none is needed.
Source: Read and found silent: the US FDA label for phenazopyridine
(Phenazopyridine Hydrochloride), retrieved 2026-08-29
HEPATIC IMPAIRMENT
- No liver-impairment dose in this label. Not a statement that none is needed.
Source: Read and found silent: the US FDA label for phenazopyridine
(Phenazopyridine Hydrochloride), retrieved 2026-08-29
PREGNANCY
- Category B Reproductive studies with Phenazopyridine Hydrochloride (in combination
with sulfacytine) in rats given up to 110 mg/kg/day and in rabbits given up to 39
mg/kg/day during organogenesis revealed no evidence of harm to offspring.
Source: US FDA label for phenazopyridine (Phenazopyridine Hydrochloride), section
'pregnancy', retrieved 2026-08-29
- One prospective study in humans demonstrated that Phenazopyridine Hydrochloride
traverses the placenta into the fetal compartment.
Source: US FDA label for phenazopyridine (Phenazopyridine Hydrochloride), section
'pregnancy', retrieved 2026-08-29
- There are no adequate and well-controlled studies in pregnant women.
Source: US FDA label for phenazopyridine (Phenazopyridine Hydrochloride), section
'pregnancy', retrieved 2026-08-29
BREASTFEEDING
- It is not known whether Phenazopyridine Hydrochloride or its metabolites are
excreted in human milk.
Source: US FDA label for phenazopyridine (Phenazopyridine Hydrochloride), section
'nursing mothers', retrieved 2026-08-29
- Because many drugs are excreted in human milk, a decision should be made to
discontinue nursing or to discontinue the drug, taking into account the importance
of drug therapy to the mother.
Source: US FDA label for phenazopyridine (Phenazopyridine Hydrochloride), section
'nursing mothers', retrieved 2026-08-29