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Hi there, my husband and i just had a sexual interaction and i took an antibiotic last night. I am using microgynon 30 and just on my 1st week of my new pack.started saturday at 9:03pm then i was late taken my sunday pill for 5mins. Took my monday one on time but had taken just an antibiotic and that's it. Just one medicine. Having sex with my husband tonight brought me up a thought and worries that it might affect the effectivity of the pill and a possibility of being pregnant is present. If that, please tell me. Thank you so much!!
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Hi Anon,
Thank you for sharing your question with the EmpowHER community!
There are a few known antibiotics (Rifampin and Griseofulvin) that can reduce the action of birth control. However, there is no evidence indicating that effect for all antibiotics.
To be on the safe side, it's recommended that a secondary birth control method be used to prevent unwanted pregnancy.
I hope this helps!
Be well,
~Gillette
March 17, 2015 - 2:30pmThis Comment