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Drug Interactions between phenazopyridine and Urogesic Blue

This report displays the potential drug interactions for the following 2 drugs:

  • phenazopyridine
  • Urogesic Blue (hyoscyamine/methenamine/methylene blue/sodium biphosphate)

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Interactions between your drugs

No interactions were found between phenazopyridine and Urogesic Blue. This does not necessarily mean no interactions exist. Always consult your healthcare provider.


A total of 36 drugs are known to interact with phenazopyridine.

Urogesic Blue

A total of 596 drugs are known to interact with Urogesic Blue.

Drug and food interactions


sodium biphosphate food

Applies to: Urogesic Blue (hyoscyamine / methenamine / methylene blue / sodium biphosphate)

Oral medications may not be properly absorbed when they are taken within one hour before starting sodium biphosphate for bowel cleansing. Talk to your doctor or pharmacist to see if you should adjust the dosing schedule of your other medications before you begin bowel cleansing treatment. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.

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Therapeutic duplication warnings

No warnings were found for your selected drugs.

Therapeutic duplication warnings are only returned when drugs within the same group exceed the recommended therapeutic duplication maximum.

Drug Interaction Classification

These classifications are only a guideline. The relevance of a particular drug interaction to a specific individual is difficult to determine. Always consult your healthcare provider before starting or stopping any medication.
Major Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit.
Moderate Moderately clinically significant. Usually avoid combinations; use it only under special circumstances.
Minor Minimally clinically significant. Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan.
Unknown No interaction information available.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.