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Mokena, IL
A member asked:

I took metronidazole. 500mg bid for 7 days on 11/03/17, i was due to get my period 11/13/17. does that antibiotic affect menstrual cycle?

1 doctor answer1 doctor weighed in
Dr. Charles Whiting
Obstetrics and Gynecology 27 years experience
No effect: Metronidazole has no affect on the menstrual cycle. Best wishes!

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Last updated Nov 26, 2017

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