| Generally Safe to Fly (GO) | Avoid (NO GO) |
|---|---|
PhenazopyridineCommon US Brand Names for PhenazopyridineAzo-Gesic Azo-Septic Azo-Standard Baridium Phenazo 95 Prodium Pyridiate Pyridium RE-Azo Urinary Pain Relief Uristat UTI Relief |
Oxybutynin (Oxytrol for women)
Common US Brand Names for PhenazopyridineOxytrol for women Oxytrol for women Ditropan Ditropan XL |
FAA Rationale: Oxybutynin can cause sedation and dizziness.
Phenazopyridine is generally allowed after adequate ground trial to monitor for side effects. Symptoms should be resolved other than slight residual irritation, and as always if symptoms persist pilots should seek more formal medical workup.
Disclaimer: Neither the FAA nor FlightPhysical.com will attempt to publish all-inclusive references. Online guidance does not replace medical advice from your PCP and/or AME. Most doctors are not AMEs, and your regular Primary Care Provider (PCP) or specialist will know more about you and/or your specific medical condition than an AME, but is probably untrained or unfamiliar with aviation medicine. Follow 14 CFR 61.53 (duty to self-ground when ill) for your safety and that of your passengers. Don't fly after taking a new medication for the first time until 48 hours have past without side effects.
When in doubt - DO NOT FLY.
FAA and MayoClinic