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Dunbar, WV
A 19-year-old female asked:

On second pill in b/c pack,take tri-previfem and been prescribed to amoxicillin.was only on the medicine for 1day when i had sex.pulled out, pregnant?

1 doctor answer2 doctors weighed in
Dr. Robert Kwok
Pediatrics 33 years experience
Unlikely: A woman who is properly taking her birth control pills is fully protected on her second pack of pills. Taking amoxicillin does not change the real-life effectiveness of the pills in a noticeable way.

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Last updated Mar 14, 2015

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