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Are There Interactions Between Antibiotics And Contraceptive Pills?

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Posted on Tue, 18 Mar 2014
Question: Hi,I took unwanted 72 while i was on antibiotics for dental problems.are there any chances of pregnancy?I heard antibiotics make emergency pills less effective.
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Answered by Dr. Indu Kumar (1 hour later)
Brief Answer: Very few antibiotics affect unwanted 72. Detailed Answer: Hello XXXX Thanks for writing to HCM It is important to know what antibiotics you are taking for dental problem. Pregnancy because of antibiotics and hormone contraceptive like unwanted 72 interactions is rare,however can be possible. Very few antibiotics affect the birth control pill.Major drugs are griseofulvin,rifampicin, and some HIV drugs. However due to prolong intake of antibiotics like amoxycillin, ampicillin,chloramphenicol,clindamycin, cephalosporin,cotrimoxazole and tetracycline lessens the amount of intestinal bacterial flora involved in the decomposition of ethinyl estradiol in the gastrointestinal tract. Due to decrease of this synthetic estrogen in the blood, ovulation may be possible. You should wait for your next period to come.Most probably there shouldn't be any problem.Even if it happens,there are ways to tackle it.Don't worry at all. Hope I have answered your question. Further queries are most welcome. Take Care Dr.Indu XXXXXXX
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Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
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Answered by
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Dr. Indu Kumar

Radiologist

Practicing since :2004

Answered : 6729 Questions

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Are There Interactions Between Antibiotics And Contraceptive Pills?

Brief Answer: Very few antibiotics affect unwanted 72. Detailed Answer: Hello XXXX Thanks for writing to HCM It is important to know what antibiotics you are taking for dental problem. Pregnancy because of antibiotics and hormone contraceptive like unwanted 72 interactions is rare,however can be possible. Very few antibiotics affect the birth control pill.Major drugs are griseofulvin,rifampicin, and some HIV drugs. However due to prolong intake of antibiotics like amoxycillin, ampicillin,chloramphenicol,clindamycin, cephalosporin,cotrimoxazole and tetracycline lessens the amount of intestinal bacterial flora involved in the decomposition of ethinyl estradiol in the gastrointestinal tract. Due to decrease of this synthetic estrogen in the blood, ovulation may be possible. You should wait for your next period to come.Most probably there shouldn't be any problem.Even if it happens,there are ways to tackle it.Don't worry at all. Hope I have answered your question. Further queries are most welcome. Take Care Dr.Indu XXXXXXX