A member asked:

I got nitrofurantonin (macrobid) for the uti and does this affect azurette(bcp) and how long do i have to use back-up? only while on antibiotics?

A doctor has provided 1 answer

BC interference.: Antibiotics that have been shown to interact with birth control pills include rifampin, and to a lesser extent, penicillin, amoxicillin, ampicillin, sulfamethoxazole/trimethoprim, tetracycline, minocycline, metronidazole and nitrofurantoin. Check with your pharmacist for this interaction.

Answered 3/12/2015

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