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Doctor insights on: Does Antibiotics Effect Birth Control

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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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Does clindamycin affect birth control pills?

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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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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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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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

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Does gardasil effect birth control?

Does gardasil effect birth control?

No: None of the commonly used vaccines have any effect on birth control methods. Vaccines are unrelated to birth control. The Gardasil vaccine is a good one to get, because it helps to prevent cervical cancer. Each year in America, almost 4000 women die of cervical cancer, averaging about 11 women each day. The vaccine will help prevent losing so many women. ...Read more

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Does Phenazopyridine lower birth control effectiveness?

Does Phenazopyridine lower birth control effectiveness?

No. But...: I don't typically worry that phenazopyridine will mess up birth control. But just to be sure, I checked known interactions and could not find any reports of it. So I don't think you have to worry. HOWEVER... One of the main causes of UTI is sexual intercourse. Assuming u have a UTI u might want to try some techniques to reduce sex-related UTI (urinate before & after, pure cranberry juice, etc). ...Read more

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Does chlamydia medicine affect birth control pills?

Does chlamydia medicine affect birth control pills?

Antibiotics: Antibiotics can affect birth control and possibly decrease their effectiveness to 97 or 98% from 99. So even though they are still very effective, I always recommend adding condoms to sex when on antibiotics as you do not want to be in the 1%. Best wishes. ...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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Does trazodone affect the birth control pill Aviane?

Unlikely: I couldn't find any specific drug interactions between Trazodone and Aviane. But do check with your prescribing doctors and pharmacist. Hope this helps. ...Read more

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For how long does nitrofurantn effect birth control pills?

For how long does nitrofurantn effect birth control pills?

Most antibiotics OK : Some antibiotics, like rifampin, definitely interact with birth control.Others may in some individuals and with some pills .It probably depends on how your body metabolizes the drugs, and it may also depend on the dose of hormones in the pills.Most small studies don't show differences in the level of hormones in the blood, but to be on the absolutely safe side, use condoms during antibiotic use. ...Read more

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Does doxycycline cancel birth control?

Does doxycycline cancel birth control?

Decrease efficacy: Doxycycline can speed up metabolism of the pills thus decreasing their efficiency ...Read more

Dr. Patricia Foster
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