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Doctor insights on: How Long After Taking Antibiotics Is Birth Control Effective Again

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How long after taking antibiotic keflex until my birth control is effective?

How long after taking antibiotic keflex until my birth control is effective?

Immidiately: Although certain antibiotics interact with birth control pills to render them less effective, Keflex is not really among those notorious for doing so. In addition, it does not really hang around too long so that once you stopped taking them, within 24 hours, it is already out of your system. ...Read more

Dr. Jeff Livingston
2,401 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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How soon after taking birth control is it effective?

How soon after taking birth control is it effective?

It depends: The answer to this depends on two factors: the kind of birth control pills you’re using, and the point in your menstrual cycle that you started them. Taking the combination pill? If you start the pill within five days after the start of your period, you’re protected right away. If you start at any other time during your cycle, you need to use a backup form of birth control for seven days. ...Read more

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How long after taking antibiotics does it take for birth control pills to be completely effective again?

How long after taking antibiotics does it take for birth control pills to be completely effective again?

A few days: This is not as common as people fear. If you are experiencing diarrhea or vomiting wile taking your antibiotics then this could effect the absorption of your birth control. ...Read more

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How much time after antibiotics is my birth control effective?

How much time after antibiotics is my birth control effective?

4 hours after pill: You can take and have absorbed the antibiotic pill 4 or more hours after you have taken the oral contraceptive. The oral contraceptive pill will have been absorbed and functioning in your bloodstream by that time and will be effective. ...Read more

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How long does birth control not work after taking antibiotics?

How long does birth control not work after taking antibiotics?

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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How long after taking antibiotic does birth control pill resume its effectiveness?

Next pack: If a woman needs to take antibiotics while on birth control pills it is recommended she use a back up method such as condoms during the time she is on the antibiotics, and to be sure use, for the rest of the pack. That is because antibiotics can make some bcp less effective at preventing pregnancy. By the time the next pack is started effectiveness is back. ...Read more

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When is birth control effective again after you stop taking amoxicillin?

When is birth control effective again after you stop taking amoxicillin?

Mst likely no effect: Most women probably don't have an interaction with Amoxicillin and birth control pills, although it's possible. Using a backup method like condoms while you're taking the antibiotic gives a margin of safety. ...Read more

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Fluconazole and birth control pills? How long after last fluconazole pill will birth control be effective again?! please help!

Fluconazole and birth control pills? How long after last  fluconazole pill will birth control be effective again?! please help!

DEPENDS: Have not seen anyone pregnant after Fluconazole with the bcp in the past 20 + years if you have sex few times a day, you may be the first one most people do not use secondary birth control during treatment. ...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 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 many days after sulfametazol antibiotic will my birth control be effective again?

How many days after sulfametazol  antibiotic will my birth control be effective again?

Give it a few days: I would wait about 3 days or so just to make sure the medication is completely out of your system. This all really depends on what your dosage is and how long you have been taking it. The half-life of this medication in your blood stream is about 9 hours so it would probably be a good idea to wait. ...Read more

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How long after stop taking birth control should pregnancy occur?

How long after stop taking birth control should pregnancy occur?

Soon after: It is possible to become pregnant quickly after stopping the birth control pill. If your cycle is delayed or you don't get pregnant, you should get evaluated by your gynecologist. ...Read more

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After taking diflucam how long does it take for birth control to be active?

After taking diflucam how long does it take for birth control to be active?

No impact: The use of Diflucan (fluconazole) does not interfere with the efficacy of birth control. If this does not answer your question, kindly repost with more specifics. ...Read more

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How long after taking antibiotics does it take for your birth control to be effective again. Ik most vBulletin don't effect bc but I'm being safe?

Next package: To be completely safe, continue your pills and rely on them after the second week of the next package after you finish the antibiotics.As you know, this is probably being excessively cautious but it is a good idea to be using condoms any way to decrease the risk of STDs. Best wishes. ...Read more

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How long would it take until the birth control pill is effective?

Possible Immediate: Immediate if started to take the first day of your period. After that the risk of geting pregnant is higher. If sunday start or a couple of days after your period you need added protection that whole month. ...Read more

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How long after I start taking birth control is it okay to start having sex without other types of birth control?

How long after I start taking birth control is it okay to start having sex without other types of birth control?

One cycle.: After you finish your first month's packet your ovulation should be suppressed and the risk of pregnancy should be <1-9%. ...Read more

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How long does it take to ovulate after finishing birth control?

Not long: Usually a woman will resume ovulation within 1-3 months of stopping a birth control pill. If it takes much longer than this, you should see your doctor to check for other causes of ovulation problems. One exception to this is that there are some forms of contraception, such as a depo-provera injection, that can have residual effects on ovulation for as long as a year. Good luck! ...Read more

Dr. Corey Clay
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