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Doctor insights on: Do Antibiotics Effect The Effectiveness Of Mirena

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Do antibiotics effect the effectiveness of mirena (levonorgestrel)?

Do antibiotics effect the effectiveness of mirena (levonorgestrel)?

Not really: Mirena (levonorgestrel) is a progesterone-secreting iud (intrauterine device). The Progesterone is distributed systemically through the body and is metablized by the liver. Some drugs, including antibiotics can speed up the metabolism of the progesterone, but this shouldn't decrease it's effectiveness. Theoretically, you may get spotting. It also acts to prevent implantation, which is not affected by antibioti. ...Read more

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Dr. John Leander Po
1,117 doctors shared insights

Antibiotic (Definition)

An antibiotic is a medicine that slows, stops, or kills germs. The germs are usually bacteria causing an infection in a person, so the person uses antibiotics to help his body get ...Read more


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What effects, if any, do antibiotics have on hormones in the mirena (levonorgestrel) IUD ? Does it reduce effectiveness similar to that of oral bcps ?

What effects, if any, do antibiotics have on hormones in the mirena (levonorgestrel) IUD ? Does it reduce effectiveness similar to that of oral bcps ?

Likely no effect.: Few, if any, of the commonly used antibiotics will have any affect on bcp efficacy. However, there are some antibiotics (used primarily to treat tuberculosis - tb) that can decrease the effectiveness of bcp's. It is not likely that any of those antibiotics (even those used to treat tb) would have any impact on the efficacy of the Mirena (levonorgestrel) or any of the other progestin only contraceptives (the shot). ...Read more

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I have the mirena (levonorgestrel) IUD and just recently got put on antibiotic. I don't have protected sex and need 2 no if biotic can affect it.

I have the mirena (levonorgestrel) IUD and just recently got put on antibiotic. I don't have protected sex and need 2 no if biotic can affect it.

Antibiotics for what: What is the reason for you taking antibiotics where is the infection antibiotics will have no affect on your sexual activity but if you are taking antibiotics for vaginal/pelvic infection.It is ok to have sex with vaginal infection as long as it is not sexually transmitted disease. ...Read more

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I'm on the Mirena (levonorgestrel) IUD and taking a antibiotic (Sulfamethoxazole). Can I get pregnant?

I'm on the Mirena (levonorgestrel) IUD and taking a antibiotic (Sulfamethoxazole). Can I get pregnant?

Mirena (levonorgestrel) IUD: No the antibiotics will not decrease the effectiveness of the Mirena (levonorgestrel). But like any contraceptive method, the IUD does have a low baseline rate of pregnancy. So yes you may get pregnant (very low risk) but if you do, it won't be because of the antibiotics. ...Read more

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Had mirena (levonorgestrel) coil for 1 1/2 years and do not use condoms with my partner. Took antibiotics then had period more like spotting. Can i be pregnant?

Had mirena (levonorgestrel) coil for 1 1/2 years and do not use condoms with my partner. Took antibiotics then had period more like spotting. Can i be pregnant?

Not likely: Iud's are one of the most effective forms of birth control. Irregular or absent periods are an expected side effect. Failure rates are 1%. Anytime you suspect pregnancy take a home pregnancy test. They are cheap, reliable and available at any pharmacy. If your test is positive you should see your doctor urgently because of the risk of tubal pregnancy (ectopic pregnancy). ...Read more

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Do antibiotics affect birth control, specifically IUDs? I'm on Cipro (ciprofloxacin) and have a Mirena IUD.

Do antibiotics affect birth control, specifically IUDs? I'm on Cipro (ciprofloxacin) and have a Mirena IUD.

Not to worry: All IUDs prevent pregnancy, and antibiotics don't interfere with them. Mirena (levonorgestrel) combines the usual action of an IUD with the hormonal effects of the progesterone-type drug included with it. A few antibiotics can affect the hormone's effectiveness, but most won't, including ciprofloxacin. ...Read more

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If I take e-mycin (anitbiotic), will it make my mirena (levonorgestrel) IUD less effective?

Mirena (levonorgestrel) IUD: Iuds work by changing the environment of the uterus, thickening the mucus so that sperm are less likely to fertilize an egg, and also by preventing a fertilized egg from implanting in the uterine wall. Little research has been done on the lack of effectiveness of iud's when used with an antibiotic. ...Read more

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Can i get pregnant while taking an antibiotic and have the mirana birth control?

Can i get pregnant while taking an antibiotic and have the mirana birth control?

Depends: If the Mirena (levonorgestrel) device is in place and not expelled the risk of pregnancy while on antibiotic is very low.Always check after menstrual period to make certain that the threads still protrude from the cervix/do not to pull on the threads as doing so may displace the intrauterine system. Report any prolonged bleeding/ fever/chills, abdominal pain/cramps to doctor.Practice safe sex use condoms.Take care. ...Read more

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I have mirena (levonorgestrel) and Nikki. Does taking the Nikki lessen the effectiveness of the mirena (levonorgestrel). If I miss the pill one day doEs the mirena (levonorgestrel) still protect. ?

I have mirena (levonorgestrel) and Nikki. Does taking the Nikki lessen the effectiveness of the mirena (levonorgestrel). If I miss the pill one day doEs the mirena (levonorgestrel) still protect. ?

Why Both: The Mirena (levonorgestrel) should still protect you. WHY BOTH! It works by two methods. The first is a little less well understood, but an intrauterine device itself changes the uterine environment preventing implantation and pregnancy the Mirena (levonorgestrel) is Levonegestrol (progesterone) coated which hormonally prevents pregnancy. NIKKI is a comb E2/progestin OCP. It hormonally prevents ovulation. follow missed pill rules. ...Read more

Dr. Peter Ihle
1 doctor shared a insight

Mirena (Definition)

Levonorgestrel is a women's ...Read more