The Big Take

Is Your UTI Pain Reliever Safe and Effective?

Phenazopyridine is not approved by the FDA despite being widely available in the US over the counter.

Users may be unaware of phenazopyridine’s potential dangers.Photographer: Jaida Grey Eagle/Bloomberg

Many women have, for decades, taken a drug called phenazopyridine to control pain from urinary tract infections that has not been vetted or approved by the Food and Drug Administration. Consumers and even doctors recommending the drug are not all aware that it lacks FDA approval and may pose a cancer risk. Here’s what to know.

Read More: The Potential Cancer, Health Risks Lurking in One Popular OTC Drug