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Doctor insights on: How Long Will Antibiotics Affect My Birth Control Pills

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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

Dr. William Singer
1 Doctor shared a insight

Birth Control Pills (Definition)

Also known as oral contraceptives, birth control pills are highly effective oral medications that use hormones to prevent pregnancy. There are two main types of birth control pills: one with estrogen and progestin (also known as the combination pill) and one with just progestin. The two main ways they prevent pregnancy are: 1) The hormones thicken the cervical mucous, which keeps sperm from entering the uterus on their way to the egg; and 2) By maintaining a level of hormone in the blood stream that prevents the ...Read more


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How much do antibiotics really affect birth control pills? After finishing antibiotics how long until back to normal?

How much do antibiotics really affect birth control pills? After finishing antibiotics how long until back to normal?

Definitely affect: All antibiotics can definitely affect the effectiveness of birth control pills. While on antibiotics, you should definitely use a back up method of birth control if you want to avoid becoming pregnant. The rule of thumb to prevent pregnancy is to use a form of back up birth control (e.g., condoms) until your next menstrual period. ...Read more

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How long do birth control pills and antibiotics interact?

How long do birth control pills and antibiotics interact?

Varies: There are only a few antibiotics that interfere with birth control pills, and fortunately they are rarely used.

For antibiotics that do have an impact (rifampin, griseofulvin) effect though depends on when the antibiotics are taken in the cycle. The chemical effect is short, but if that short effect results in unintended ovulation, the impact may last the entire cycle. ...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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If taking antibiotics during the off cycle of birth control pills, how long do you need to take extra protection?

According to. ..: ...British nhs, of all the antibiotics, only Rifampin requires extra protection:

http://www. Nhs. Uk/conditions/contraception-guide/pages/antibiotics-contraception. Aspx. ...Read more

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How long can chlamydia antibiotics affect the effectiveness of birth control pills?

How long can chlamydia antibiotics affect the effectiveness of birth control pills?

Until your next: Period, it is recommended that you use alternate BC after antibiotics. Condoms would also help protect against STD's. ...Read more

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Hi, can I be pregnant if I'm taking birth control pills cryselle long time and antibiotic clindamycin 2 days and had unprotected sex? Tnx

Hi, can I be pregnant if I'm taking birth control pills cryselle long time and antibiotic clindamycin 2 days and had unprotected sex? Tnx

Low probability: Of getting pregnant, although any antibiotic can reduce the effectiveness of birth control pills, less though with clindamycin, more with others as tetracycline. However this behooves you to use extra method of contraception if you are using any medicine that interacts with birth control pilks. Good that you asked, always exercise caution with multiple medications, good luck ...Read more

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How long does nausea from birth control pills last? On second month, can the anitibiotics for a UTI be making it worse?

How long does nausea from birth control pills last? On second month, can the anitibiotics for a UTI be making it worse?

Antibiotics ; BCP: The only antibiotic with proven interference with bcps is rifampin. This is not making your nausea worse. You need to see a psychiatrist as an emergency to deal with your suicidal ideation. Go now. ...Read more

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Can the antibiotic "bactrim" affect my birth control pills in any way?

Can the antibiotic "bactrim" affect my birth control pills in any way?

Bactrim (sulfamethoxazole and trimethoprim): This medication may actually increase plasma levels of ethinyl estradiol, the medicine found in many contraceptives. ...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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For what length of time do antibiotics effect birth control pills?

For what length of time do antibiotics effect birth control pills?

Immediately: Antibiotics get broken down at the liver so they make the liver speed up their work. At the same time the birth control pills will also be broken down more quickly therefore increasing the chances for pregnancy. Consider using added protection that month. ...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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How soon can I start my birth control pills after finishing antibiotics?

Now: Some antibiotics can make birth control pills less effective meaning you should use a back up method like condoms while you are taking the antibiotics. There is no reason to stop or delay the birth control pills. ...Read more

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What is it about antibiotics that causes birth control pills to be ineffective?

Bacteria: The bacteria in your gut that make the pill effective by converting it from inactive to active form are killed off by antibiotics. ...Read more

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Can you get pregnant on antibiotics and birth control pills?

Can you get pregnant on antibiotics and birth control pills?

VERY RARELY: In the prescribing info, it is said that taking certain antibiotics may reduce the potency or effectiveness of birth control pills. In my experience, I have never seen this in over 30 years of practice. At your age of 44, conception under any circumstances may be unlikely, though it does occur. ...Read more

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Could vaginal antibiotic suppositories affect birth control pills?

Could vaginal antibiotic suppositories affect birth control pills?

Usually not: I am assuming you mean Diflucan (fluconazole) or Monistat vaginal suppositories (for yeast infection)? No they do not interfere with your birth control pills. ...Read more

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Does the antibiotic azithormycin effect my birth control pills? Is this why I am having spotting?

Does the antibiotic azithormycin effect my birth control pills? Is this why I am having spotting?

Antibiotics vs. Pill: Antibiotics can interfere with the absorption of the oral contraceptive pill and therefore should never be taken together as the antibiotic will be preferably absorbed leaving you with little contraceptive protection. Separate the doses by at least 4 to 6 hours. ...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


Dr. Michael Kleerekoper
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