A member asked:

If i have been on the bcp junel fe 1.5/30 for a year and took nitrofurantoin for 5 days was my birth control affected or was i protected?

A doctor has provided 1 answer

B.C. stays effective: The current thinking is that except for rifampin, other commonly-used antibiotics (such as nitrofurantoin and many others) do not alter the effectiveness of birth control pills. This is likely presuming a person is not sick with vomiting or diarrhea, or some other condition that decreases the absorption of a swallowed pill. One can look up: http://www.ncbi.nlm.nih.gov/pubmed/12063491

Answered 11/30/2017

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