Haven't heard that: Haven't heard of Pyridium or Azo-Standard altering the effectiveness of hormonal birth control pills. The ingredient is phenazopyridine, often used on a short-term basis to help relieve the pain, irritation, or urinary urgency caused by urinary tract infections.
Answered 2/2/2020
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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