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Doctor insights on: Which Antibiotics Affect Birth Control

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Does antibiotics affect the birth control patch?

Does antibiotics affect the birth control patch?

Depends on the drug: Only rifampin makes Ortho Evra patch less effective unlike oral contraceptives which is greatly affected by many antibiotics due to that fact that in addition to killing the bacteria responsible for causing infection, antibiotics also kill the normal bacteria that live in the stomach (normal flora) that are responsible for activating the birth control pill. Never hurts to have partner wear condom. ...Read more

Dr. Jeff Livingston
2,394 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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Can antibiotics really affect the effectiveness of birth control pills?

Can antibiotics really affect the effectiveness of birth control pills?

Yes: They affect absorption...Reducing absorption so pills are not as effective. ...Read more

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Will topical antibiotics affect birth control?

Will topical antibiotics affect birth control?

No: Topical antibiotics do not interfere with the effectiveness of birth control. ...Read more

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Does clindamycin affect birth control pills?

Yes it may: Yes it may and you should use a back up method of birth control up to 7 days after you finish the course of clindamycine.You can ask your orescribing doctor if it is safe as there is controversy about antibiotics and bcp except Rifampin and Griseofulvin two antibiotics for sure decrease the effectiveness of bcp. ...Read more

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Is azithormycin a known antibiotic to affect birth control pills?

Yes: Really any antibiotic can effect your birth control. It changes the gut bacteria which can lead to a change in how it is absorbed into your system. This can change how effective it is. ...Read more

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Can Acetaminophen affect birth control effectiveness?

Can Acetaminophen affect birth control effectiveness?

To my knowledge: this has not been a problem in my practice nor have I found it in the literature. ...Read more

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Will the antibiotic nitrofurantoin affect my birth control pill?

Will the antibiotic nitrofurantoin affect my birth control pill?

Yes: If you are taking Nitrofurantoin while using birth control pills, you should use a back-up method of birth control (ie. Condom). Despite the fact there is little evidence supporting a massive increase in pregnancies with antibiotic use, it is better to be safe than sorry. Use the back-up method during the run of your antibiotic and continue for one week afterwards. ...Read more

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Can taking fluconazole affect the effectiveness of birth control?

Can taking fluconazole affect the effectiveness of birth control?

Studies : Show slight decrease in effectiveness of BCP on fluconazole. Doesn't look like it should be a problem. But be safe. During the time on meds. Use double protection ...Read more

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Does taking ciprofloxacin affect the efficacy of birth control pills?

Does taking ciprofloxacin affect the efficacy of birth control pills?

Yes: All antibiotics generally have the effect to decrease the efficacy of birth control pills, so it recommended to use condoms as well while taking these medications. ...Read more

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Can acyclovir affect birth control shot?

Can acyclovir affect birth control shot?

No: There are no known or proven interactions between birth control and acyclovir. Hope this helps! ...Read more

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Will doxycycline affect sprentic birth control pills?

Will doxycycline affect sprentic birth control pills?

Yes: Birth control pills are all at risk of being affected by antibiotics like doxycycline. You should use a backup form of contraceptive like condoms or abstinence for the rest of this cycle. ...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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Which birth control pills does inh effect?

Which birth control pills does inh effect?

Any hormonal pills: Any birth control pills with Estrogens or progestogens will be theoretically enhanced because of isoniazid's ability to reduce cytochrome p450. ...Read more

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Can antibiotics interfere with birth control?

Can antibiotics interfere with birth control?

Yes: We typically suggest that you use a second form of contraception while you're taking antibiotics, just to be on the safe side. ...Read more

Dr. Heidi Fowler
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