If I take macrobid 4-5 hours after intercourse, will it still help prevent a UTI?
Nitrofurantoin - How long after intercourse until Macrobid is no longer effective?
Question posted by smr1518 on 6 April 2016
Last updated on 6 April 2016 by chuck1957
SMR; YES the woman that have to take this one or one of the others to prevent a UTI they normally do take this anywhere from 2 to 6 hours after intercourse.
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