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Doctor insights on: How Long Will Antibiotics Affect Birth Control

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Do antibiotics make birth control ineffective?

Do antibiotics make birth control ineffective?

Yes: Women on contraceptives are advised to use an alternate method of birth control whenever they take antibiotics. They should use the alternate method throughout the course of antibiotics & through the end of current pack of pills. ...Read more

Dr. Jeff Livingston
2,319 doctors shared insights

Contraception (Definition)

Contraceptiion is a means of preventing conception (or fertilization). There are hormonal and non hormonal methods of preventing sperm and egg from meeting. Talk to your doctor or clinic about what options are best for you. There are short acting methods (condoms, pills, patch, ring) and long ...Read more


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Do antibiotics effect birth control and How long do antibiotics affect birth control?

Do antibiotics effect birth control and How long do antibiotics affect birth control?

Generally not: There are a few antibiotics, usually used to treat Tuberculosis, that can decrease the effectiveness of oral contraceptives. The common antibiotics (penicillins, cephalosporins, sulfas, z-pack, etc) do not affect oral contraceptives. ...Read more

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How long will antibiotics affect my birth control pills?

How long will antibiotics affect my birth control pills?

Antibiotics: Some antibiotics decrease effectivity of birth control pills. This means that you have to use caution and protection for the rest of month that you are on antibiotics. The next month or cycle on birth contol pills should provide adequate coverage as long as you are not on antibiotics. ...Read more

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How long does antibiotics affect your birth control?

How long does antibiotics affect your birth control?

They don't...: Most common antibiotics don't affect birth control much at all. This has been blown way out of proportion to reality on the internet. Unless you are taking Rifampin or some other exotic antibiotic, I wouldn't worry about it. Best wishes! ...Read more

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On average, how long will an antibiotic affect birth control?

During therapy: While you are on antibiotics your oral contraceptive *may* be less effective. Plenty of women take antibiotics and birth control at the same time and don't get pregnant. The answer lies with what your comfortable with.... Do you want to use a back up method when you are on antibiotics? As soon as you stop antibiotics, within 72 hours your birth control is back to being effective. ...Read more

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How long after being on antibiotics would birth control be effective again?

How long after being on antibiotics would birth control be effective again?

At least seven days: At least 7 days after including the time you have been on the antibiotics, but one should not stop the bcp even when taking the antibiotics. ...Read more

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How long to wait after antibiotics until birth control is completely effective?

How long to wait after antibiotics until birth control is completely effective?

The next package: Not all antibiotics effect birth control pills but anything that decreases their effectiveness does so for the rest of that package. Keep taking them and use a back up method until you are on the next package. Hope this helps. ...Read more

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How long will it take for your birth control to restart after taking an antibiotic?

How long will it take for your birth control to restart after taking an antibiotic?

Birth control: Most antibiotics do not interfere with birth control, but need to know what specific pills you are taking and which antibiotic before this can be answered. ...Read more

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I recently finished an antibiotic about a week ago. How long does it stay in your system and how long can it affect my birth control?

I recently finished an antibiotic about a week ago. How long does it stay in your system and how long can it affect my birth control?

Elimination issue: That depends on the antibiotic. Usually we say that it takes 5 half lives of the antibiotic to get out of the body. More importantly, the effect on your normal gut bacteria; can be altered > 1 month depending on how broad spectrum the antibiotic. Flora helps ocp absorption. It would be safest to at least use a secondary mode of protection for a month after you complete your course of antibiotic. ...Read more

Dr. Sanjiv Kaul
4 doctors shared insights

Birth Control (Definition)

Also known as contraception, birth control is a method to prevent pregnancy. Some methods of birth control include a vasectomy, tubal ligation, oral contraceptive pills, vaginal rings, hormone injections, condoms, diaphragms, sponges, ...Read more


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