Tuesday, January 31, 2023

Can Antibiotics Interfere With Birth Control

Can Antibiotics Affect My Birth Control

What medications can interfere with birth control? Dr. Megan Bird

Does amoxicillin affect birth control? I used this antibiotic for my throat.

Nope! Antibiotics like amoxicillin wont change the effectiveness of your birth control. The antibiotic rifampin is the only exception it can lower the effectiveness of the pill, patch, and ring. So unless youre using one of those birth control methods and taking rifampin, which is a medicine used to treat tuberculosis, theres nothing to worry about.

There are, however, some other medicines besides antibiotics that can make birth control not work as well. So its very important to be open and honest with your nurse or doctor about what medicines youre on no matter if it was prescribed or not so they can give you the best care.

Tags:antibiotics, prescription birth control

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Will Emergency Contraception Like Plan B Work If I Am On These Medications

Emergency contraception like Plan B may not work if you:

  • Weigh over 165 pounds

  • Take anti-seizure medications, antibiotics for TB, HIV medications, or St. Johns Wort

  • Have recently used anti-seizure medications, antibiotics for TB, HIV medications, or St. Johns Wort

In these cases, the best method of emergency contraception is the copper IUD, for example, ParaGard. This will need to be inserted by a trained healthcare professional within 5 days of having unprotected sex. For more information about emergency contraception, see our blog post here.

Do Antibiotics Decrease Birth Control Pill Effectiveness

When used correctly, birth control pills have a 91% effectiveness rate. As the leading, most popular form of birth control, the pill is used by 28% of all women of reproductive age in the U.S. While the pill is highly effective at preventing unintended pregnancy, many women will use birth control pills for health benefits too. Birth control pills can clear up acne, regulate periods, decrease menstrual pain, and alleviate symptoms of PCOS. But some popular medications can interfere with the pills effectiveness, mainly antibiotics.

How much do antibiotics impact the efficacy of birth control pills? And are there other medications that can influence birth control pills or other contraceptive methods? The following article will explore how antibiotics and birth control pills impact each other, and what women can do to prevent pregnancy while using antibiotics or other prescription drugs.

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Using A Backup Method

Although there have been some cases reported of contraceptive failing when a woman takes antibiotics, it doesnt happen regularly. To ease your mind while taking antibiotics, your doctor will generally recommend that a backup method of birth control is used during this time. Typically, a condom, spermicide, or a female condom are all good options to use as a backup method.

If you are takingboth antibiotics and birth control at the same time and wondering doantibiotics affect birth control, you should speak with your doctor and findout how long you should use a backup method for.

What Do I Need To Know About Rifamycins

Do antibiotics affect your birth control?

Rifamycins are a class of antibiotics. The most commonly prescribed rifamycin is known by the name rifampin. Rifampin is not prescribed very commonly in the United States.

Rifamycins, are most commonly prescribed for the treatment of mycobacterial infections, including tuberculosis , or for treating travelersâ diarrhea caused by E. coli .

Rifampin can sometimes be used in combination with other antibiotics to treat other bacterial infections too . .)

Rifampin, can speed up the liverâs ability to break down molecules and medications, including hormonal birth controls, which are processed continually through the liver .

For this reason, anyone taking any form of hormonal contraceptive, like the pill, patch, ring, mini-pill, and the implant, who is prescribed rifampin treatment should note that their hormonal contraceptive will not be as effective, and may increase their likelihood of becoming pregnant .

Rifampin does not interact with other forms of birth control, such as the contraceptive shot, the copper IUD, and the hormonal IUD, meaning that you can continue to use these types of contraception while undergoing rifampin treatment .

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How Can You Tell If Youre Getting Side Effects From Either

It could be the one you started taking most recently if you think you are experiencing side effects, it is very likely they are being caused by the medication you started taking most recently. For example, if you have been taking the pill for a while but have only just started a course of antibiotics, it is likely the antibiotics are causing the effects.

It’s not always easy to tell if you began taking them around the same time it can be difficult to distinguish between the two as the side effects can be similar. The table below shows the similarities and differences between the side effects of both the pill and antibiotics:

The Pill
Missed periods Diarrhoea

How to confirm where the side effects are coming from if you think you may be experiencing side effects from your contraceptive pill, antibiotics or both, you should consult your doctor. The similarities between the side effects of both medications can make it difficult for you to determine the cause. Your doctor, however, will be able to distinguish between the two and provide a solution to make you feel better.

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Understand How Your Contraceptive Works

Excessive vomiting and/or diarrhea can also lower the effectiveness of the pill. If you are experiencing these symptoms, contact your healthcare provider for advice about additional methods of birth control. If you have any questions about birth control methods or potential interactions with other medications, talk to your healthcare provider. You will lower your chances of birth control failure if you have a proper and thorough understanding of how to use your contraceptive.

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The Claim: Antibiotics Cancel Out Birth Control

If you use birth control, a widely shared post on Facebook claims you should avoid antibiotics.

PSA: Antibiotics will cancel out your birth control and your doctor will f—ing forget to tell you that, reads a shared more than 83,000 times.

The post was published in October 2018, but it continues to gain traction on Facebook. And the post’s claim is misleading.

Experts say most antibiotics do not interfere with the effectiveness of contraceptives. The only exception is rifampin, an antibiotic used to treat tuberculosis.

USA TODAY reached out to the Facebook user who shared the post for comment.

Are You Still Protected If You Have Breakthrough Bleeding On The Pill

Antibiotics and Birth Control Pills.flv

Breakthrough Bleeding on the Pill, Can I Be Pregnant? If you experience breakthrough bleeding on the pill, it does not mean that you are pregnant. If you are taking your pill correctly each day, the hormones in the pills prevent you from getting pregnant, even if you are experiencing breakthrough bleeding.

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Why Do Antibiotics Make Birth Control Fail

Estrogen is found in birth control pills. In some cases, antibiotics, such as penicillin, are used. In the liver, rifampin, griseofulvin, and other drugs increase the breakdown of estrogens, which can decrease the bodys estrogen levels and the effectiveness of the pills. Unwanted pregnancy can result from this.

How To Prevent Birth Control Ineffectiveness

Always talk with your doctor about birth control interactions before taking new medications, including vitamins or over-the-counter medications. Ask if the medication or supplement will interfere with your birth control effectiveness. Even if more research is needed, its generally better to err on the side of caution. You can use backup forms of birth control in addition to oral contraceptives when taking medications that interfere with the effectiveness.

If you forget to use a backup method, you can take over-the-counter emergency contraception for up to five days after intercourse. For long term medications, such as retrovirals, diabetes medications, or anticonvulsants, it is best to talk with your provider about other contraception methods, such as long-acting reversible contraception or injectable progesterone.

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How Do Antibiotics Affect Birth Control

Rifampicin affects the levels of contraceptive hormones present in the body, reducing the effectiveness of hormonal contraceptives.

There are several ways pills can interact with each other, and affecting gut absorption is just one of them. Rifampicin also changes the levels of some of the liver enzymes chemicals that can affect the way we use hormones in the body.

Why Is The Contraceptive Pill Affected By Other Medicines

Can Antibiotics Decrease Birth Control Pill Effectiveness?

Some medications can cause oestrogen and progesterone levels to drop if youre taking the pill as well. Certain levels of these hormones are required to prevent ovulation, so lowering these may mean you are no longer protected from pregnancy.

The main culprits for causing oestrogen and progesterone levels to drop are enzyme-inducers. They speed up the processing of some contraceptive hormones, lowering levels of these hormones faster than normal, making them less effective. A wide range of medications contain enzyme-inducers, conditions that are often treated with enzyme inductors include epilepsy, depression and HIV, they are also often in treatments for sleep control, weight management, fungal control and even some natural remedies.

Both combined and mini pills are impacted by enzyme-inducers. Other hormonal contraceptive methods can also be affected, such as the patch, vaginal ring and implant. These all use synthetic versions of natural hormones which work together to prevent pregnancy by stopping ovulation. This prevents the fertilisation of an egg by sperm.

Contraception methods not affected by enzyme-inducers are the progesterone-only injection, the intrauterine device and the intrauterine system .

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How To Take Birth Control Pills Correctly

When used as directed, birth control pills are up to 99 percent effective in preventing pregnancy. Most birth control pills are taken daily for 21 days on and seven days off. Some pills are taken for 28 straight days and others for 91 straight days. Pills may be different colors to indicate different levels of hormones. Some days you may take pills that contain no hormones. Theyre meant to keep you in the habit of taking your pills.

Your doctor will advise you about when to start taking your pills. This is usually the first Sunday after your menstrual cycle starts or the first day of your menstrual cycle. You should take your pills at the same time each day. If you dont take your pills consistently, your risk of becoming pregnant increases.

Birth control pills are just one of many birth control options. Other options include:

  • pills
  • implants
  • diaphragms

The U.S. Department of Health and Human Services recommends asking yourself these questions when deciding which option is best for you:

  • Do you want to have children some day?
  • Do you have any medical problems?
  • How often do you have sex?
  • How many sex partners do you have?
  • Will the birth control prevent HIV and other sexually transmitted diseases?
  • How well does the birth control work?
  • What are the side effects?
  • Is it difficult or inconvenient to use?

Antibiotics That Do Not Affect Birth Control

Most antibiotics have no proven effects on hormonal birth control and will not increase your chances of getting pregnant if you have sex during treatment. Commonly prescribed antibiotics that are safe to take while on birth control include:

  • Ampicillin, for treating bladder infections, pneumonia, and more.
  • Cephalexin, for treating upper respiratory, ear, skin, urinary tract, and bone infections.
  • Ciprofloxacin, for treating skin, respiratory, joint, and urinary tract infections.
  • Clarithromycin, for treating bacterial skin and respiratory infections.
  • Clindamycin, for treating skin, lung, soft tissue, vaginal, and pelvic infections.
  • Doxycycline, for treating urinary tract infections, gonorrhea, chlamydia, syphilis, respiratory infections, and more.
  • Metronidazole, for treating vaginal, stomach, liver, skin, joint, and respiratory system infections.
  • Minocycline, for treating urinary tract, respiratory, and skin infections, as well as chlamydia.
  • Ofloxacin, for treating skin infections, urinary tract infections, pelvic inflammatory disease, chlamydia, and gonorrhea.
  • Roxithromycin, for treating bacterial respiratory tract, urinary and soft tissue infections.
  • Sulfamethoxazole, for treating urinary tract, ear, and respiratory infections, among others.
  • Tetracycline, for treating skin, respiratory, urinary, and other infections, as well as syphilis, gonorrhea, and chlamydia.
  • And many more.

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Hiv Medications Or Antiretrovirals

These medications are used to prevent the HIV virus from multiplying and keep it under control.

  • Antiretrovirals that interact with birth control: There is a risk of interaction with all ARVs.

  • Antiretrovirals that dont interact with birth control: The good news is that there are some safe contraception-ARV combinations. Your doctor can make recommendations on a case-by-case basis.

  • Safest contraception options: In most cases, the birth control shot , hormonal IUD , and copper IUD are all safe to use on HIV treatment. Non-hormonal methods are another safe alternative.

Slection Des Donnes :

Birth control: Do antibiotics affect my birth control? | Nurx (2020)

Recherche dans Medline des articles publiés entre 1975 et septembre 1998 inclusivement. Il sagissait de rechercher notamment les mots-clés « antibiotic », « oral contraceptive » et « pregnancy ». Les articles publiés, de même que les références accompagnant ces articles, ont été passés en revue. Les articles faisant état des mécanismes de linteraction entre les antibiotiques et les contraceptifs oraux ont été inclus dans létude.

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What Antibiotics Are Known To Interfere With The Birth Control Pill

There are dozens of antibiotics on the market that are prescribed for different infections. Some infections can be so aggressive that a person may need to try several rounds of antibiotics before getting better. Also, antibiotics can be called by different names, although they are the same drug. Its crucial that patients on the pill ask their doctor if the antibiotic they are getting can interfere with their birth control pill, ring, or patch.

Only 2 antibiotics have been shown to have an effect on birth control pills: Rifampin and Griseofulvin.

Rifampin is a drug used to treat tuberculosis, so it is fortunately not commonly prescribed in the U.S.

Topical antibiotics do NOT interfere with birth control pill effectiveness.

A study from the Journal of the American Academy of Dermatology states that pharmacokinetic evidence demonstrates that levels of oral contraceptive steroids are unchanged with combined administration of antibiotics, showed the following antibiotics do NOT affect birth control pills blood levels of birth control hormones = they are OK to use with birth control pills.

  • Ampicillin

How Do Antibiotics Lower Birth Control Effectiveness

Estrogen is found in birth control pills. In some cases, antibiotics, such as penicillin, are used. In the liver, rifampin, griseofulvin, and other drugs increase the breakdown of estrogens, which can decrease the bodys estrogen levels and the effectiveness of the pills. Unwanted pregnancy can result from this.

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Other Bacteria And Protozoans

In 2008, tentative evidence showed rifampicin may be useful in the treatment of methicillin-resistant Staphylococcus aureus in combination with other antibiotics, including in difficult-to-treat infections such as osteomyelitis and prosthetic joint infections. As of 2012, if rifampicin combination therapy was useful for pyogenic vertebral osteomyelitis was unclear. A meta-analysis concluded that adding adjunctive rifampicin to a -lactam or vancomycin may improve outcomes in staphylococcus aureus bacteremia. However, a more recent trial found no benefit from adjunctive rifampicin.

It is also used as preventive treatment against Neisseria meningitidis infections. Rifampicin is also recommended as an alternative treatment for infections by the tick-borne pathogens Borrelia burgdorferi and Anaplasma phagocytophilum when treatment with doxycycline is contraindicated, such as in pregnant women or in patients with a history of allergy to tetracycline antibiotics.

It is also sometimes used to treat infections by Listeria species, Neisseria gonorrhoeae, Haemophilus influenzae, and Legionella pneumophila. For these nonstandard indications, antimicrobial susceptibility testing should be done before starting rifampicin therapy.

The Enterobacteriaceae, Acinetobacter species, and Pseudomonas species are intrinsically resistant to rifampicin.

It has been used with amphotericin B in largely unsuccessful attempts to treat primary amoebic meningoencephalitis caused by Naegleria fowleri.

How Does Hormonal Birth Control Work

6 Medications That Can Affect Birth Controlâs Effectiveness

Some birth control methods are not hormonal for example, diaphragms, cervical caps, and male and female condoms. Were not talking about those here.

Most people who can get pregnant use hormonal forms of birth control meaning, birth control that releases hormones into the body to prevent a pregnancy. Most pills contain a mix of hormones, usually progestin and estrogen, as do the patch and the vaginal ring . Some pills and other birth control methods such as injections, implants , and intrauterine devices , release only progestin into the body.

click here for larger image

Progestin, the common active ingredient in all types of hormonal birth control, prevents pregnancy in a few different ways:

  • It makes it difficult for sperm to pass through the cervix and fertilize the egg.

  • It makes ovulation less likely.

  • It thins the lining of the womb, making it less likely that a fertilized egg can stick.

Estrogen is combined with progestin in most contraceptive pills, the patch, and the vaginal ring. It prevents pregnancy by preventing ovulation.

So far, so good.

Unfortunately, some medications make hormonal contraception less effective. Lets look at what those are here.

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Anticonvulsants / Mood Stabilizers

If you have epilepsy or bipolar disorder, make sure you speak to your doctor about your medications possible interaction with hormonal birth control. Barbiturate medicines commonly used as anticonvulsants, sleep aids, and mood stabilizers have been known to interfere with birth control these include felbamate, lamotrigine, phenobarbital, and primidone. Other medicines for treating seizures and nerve pain, like oxcarbazepine, carbamazepine, phenytoin, and topiramate, are also known to make birth control less effective. Unfortunately, these negative interactions are a two-way street, meaning they weaken the effects of birth control and birth control weakens their effects too. In any case, if you are on a mood stabilizer or anticonvulsant and want to prevent pregnancy, talk to your doctor about your options.

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