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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Does Taking Amoxicillin Affect Microgynon?

Im currently taking Microgynon 30, and was prescribed Amoxicillin 500mg as I m having sinus problems, i have been taking the antibiotics for 4 days now. I wasn t informed on whether these antibiotics would affect my pill, and have been sexually active since taking the antibiotics without taking extra precautions. Does Amoxicillin havean effect on my pill? What do you advise I do? I will go for a morning after pill tomorrow, i started taking the Amoxicillin on Friday at 1pm, and wAs sexually active on Saturday at around 1am, I haven t been since then onwards.
Wed, 12 Nov 2014
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General & Family Physician 's  Response
HI, thanks for using healthcare magic

There are some antibiotics that can affect the function of the pill but this is not true for amoxicillin.

The antibiotics that are more likely to cause this effect are rifampicin and rifabutin.

There is very little chance of unplanned pregnancy once you were using your pill correctly.

I hope this helps
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Does Taking Amoxicillin Affect Microgynon?

HI, thanks for using healthcare magic There are some antibiotics that can affect the function of the pill but this is not true for amoxicillin. The antibiotics that are more likely to cause this effect are rifampicin and rifabutin. There is very little chance of unplanned pregnancy once you were using your pill correctly. I hope this helps