Does Penicillin Effect Birth Contorl?

I just was put on penicillin today for birth control. I am secxually active and relay on my birth control when I enjoy sex with my boyfriend. Will penicillin affect this. If so how long after I am done with my penicillin can have sex?
Answers:
Most unambiguously. Your pills do not work when taking penicillin and many other antibiotics. My best friend expectantly got pregnant while taking antibiotics when on birth control pills.
Yes, penicillin effects birth control. Your birth control will not be as effective while you are on it. Any antibiotic make your birth control less effective.
My doctor recommended using an alternative form of birth control until about a week after I'm done taking antibiotics.
Hope this help! Source(s): Personal experience

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