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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Can Antibiotics Render Birth Control Pills Ineffective?

my name is Mckenzie and I m 18 yeArs old. and I had a few questions to ask just to clarify. me and my boyfriend had unprotected sex but both times he had peed in between ejaculations and also he pulled out and I jacked him off for a while. so he just thrusted then he pulled out. could I pregnant? I m also on a birth control but I take antibiotics.
Mon, 26 Sep 2016
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General & Family Physician,  's  Response
Hello dear
I understand your concern
Drug that affect the OCP effectiveness are:
Rifampicine, Amoxicillin, ampicillin, griseofulvin, metronidazole and tetracycline.
These antibiotics increase metabolism of the oral contraceptive pill in liver and decrease the circulating level of the hormone.
If you are not taking any of the above drug then you are totally safe.
If you are taking any of the above antibiotics then take I pill to prevent the pregnancy.
If you will be pregnant then you can terminate the intrauterine pregnancy up to 9 week of by abortion pill under the advise of the gynecologist.
Hope this may help you

Contact HCM for further health query
Best regards
Dr. Sagar
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Can Antibiotics Render Birth Control Pills Ineffective?

Hello dear I understand your concern Drug that affect the OCP effectiveness are: Rifampicine, Amoxicillin, ampicillin, griseofulvin, metronidazole and tetracycline. These antibiotics increase metabolism of the oral contraceptive pill in liver and decrease the circulating level of the hormone. If you are not taking any of the above drug then you are totally safe. If you are taking any of the above antibiotics then take I pill to prevent the pregnancy. If you will be pregnant then you can terminate the intrauterine pregnancy up to 9 week of by abortion pill under the advise of the gynecologist. Hope this may help you Contact HCM for further health query Best regards Dr. Sagar