Antibiotics like amoxicillin are not likely to change the effectiveness of birth control. The only exception is the antibiotic Rifampin (also known as Rifadin and Rimactane). It may lower the effectiveness of the pill, patch, and ring. So unless you’re using birth control methods and taking Rifampin, a medicine to treat tuberculosis, there’s nothing to worry about.
Most antibiotics (medications to fight bacterial infections) do not affect birth control, except for a few. While some women conceive while taking antibiotics and hormonal birth control simultaneously, these reports are rare. The chances of getting pregnant while taking most antibiotics are no higher than the average failure birth control rate of 6 to 9%.
Some meds don’t effectively work if we take them together. The same is with birth control, which contains hormones. If you want it to work right, avoid specific medications. The pill and other birth control types like the patch, ring, or injections usually contain the female sex hormones estrogen and progestin. They stop eggs from leaving the ovaries, and you do not get pregnant. However, some meds won’t let the hormones do their job. So if you take them at the same time as birth control, you may not have the protection you desire. You may order period delay tablets from a reputed online pharmacy like Click Pharmacy.
How Antibiotics Might Affect Birth Control
Some antibiotics can affect birth control because they may change the body’s hormone levels. Hormonal birth control types that these antibiotics might affect are:
- Pill
- Patch
- Ring
- Shot
All four birth control methods contain the hormones estrogen and progestin, which thickens the mucus in the cervix. They also make it challenging for sperm to fertilise an egg. They also thin the uterus lining to lessen your chance of getting pregnant. The methods containing estrogen also prevent you from ovulating, while progestin-only stop ovulation but not consistently. In addition, certain antibiotics may lower the levels of estrogen and progestin in the body, potentially affecting your birth control.
Antibiotics might also lessen birth control’s effectiveness by interrupting the recirculation of estrogens in your body. It is a process known as enterohepatic circulation. They kill the bacteria in the small intestine that breaks the hormone down and redistribute it within the body.
Antibiotics that do not affect birth Control
Most antibiotics have no effects on hormonal birth control. They will not increase the chances of getting pregnant if you have sex during the treatment. Common antibiotics that are safe to take while on birth control are:
- Ampicillin: for the treatment of bladder infections, pneumonia, and more.
- Cephalexin: for upper respiratory, ear, skin, urinary tract, and bone infections.
- Ciprofloxacin: for skin, respiratory, joint, and urinary tract infections.
- Clarithromycin: for bacterial skin and respiratory diseases.
- Clindamycin: for skin, lung, soft tissue, vaginal, and pelvic infections.
- Doxycycline: for urinary tract infections, gonorrhoea, chlamydia, syphilis, respiratory infections, and more.
- Metronidazole: for vaginal, stomach, liver, skin, joint and respiratory system infections.
- Minocycline: for urinary tract, respiratory, and skin infections, as well as chlamydia.
- Ofloxacin: for skin infections, urinary tract infections, pelvic inflammatory disease, chlamydia, and gonorrhoea.
- Roxithromycin: for bacterial respiratory tract, urinary and soft tissue infections.
- Sulfamethoxazole: for urinary tract, ear, and respiratory infections, among others.
- Tetracycline: for skin, respiratory, urinary, and other diseases, syphilis, gonorrhoea, and chlamydia.
- And many more
Taking doxycycline or minocycline may increase the sensitivity to the sun. Other medications that aren’t antibiotics, like some antifungals, may also interact with birth control. So always tell your healthcare provider about all the medicines you’re taking.
Antibiotics that can affect birth control
So far, the only antibiotic that interferes with birth control is Rifampin (Rifadin), a drug to treat tuberculosis. Rifampin causes irregular periods. It raises your risk of getting pregnant even if you use birth control correctly.
Rifampin
Healthcare providers prescribe this medication to treat tuberculosis. Unfortunately, Rifampin causes the enzymes in the liver to break down estrogens faster than usual, lowering those hormone levels in the body and possibly reducing your birth control’s efficacy. As a result, some women might have spotting between their periods while taking Rifampin. However, this doesn’t mean their birth control isn’t working.
Rifabutin
Healthcare providers prescribe this medicine to prevent an infection known as mycobacterium avium complex in HIV patients and to treat tuberculosis. It also reduces birth control hormones level that suppresses ovulation.
These types of antibiotics may increase the enzymes in the body. This is known as being “enzyme-inducing” and may affect hormonal contraception. If you take enzyme-inducing antibiotics while using hormonal contraception, you’ll need to:
- Use additional contraception, like condoms
- Change to another method of contraception
- Take your contraception in another way
What to do if I need to take antibiotics while on birth control
If your healthcare provider prescribes an antibiotic and you’re concerned it may affect your birth control, consider a backup birth control a week after treatment. These are:
- Condoms
- Spermicide, a substance that kills sperm
- A diaphragm, a silicone cup placed in the vagina
- A cervical cap, the same as the diaphragm but smaller
You may also talk to your doctor about switching to non-hormonal birth control, like a copper intrauterine device (IUD). This small device is placed in the uterus, which prevents the sperm from reaching or fertilising an egg. The copper typically behaves as a spermicide.
If your healthcare provider prescribes you a Rifamycin, always try a backup method of birth control, like a condom or diaphragm, during vaginal sex. Use one of these backup methods for the entire length of your treatment, plus a week after finishing the antibiotic.
Suppose you take an antibiotic to treat a sexually transmitted infection such as gonorrhoea or chlamydia. In that case, you might need to avoid having sex during and immediately after treatment.
Additional contraception when taking antibiotics
If you take rifampicin or rifabutin for more than 2 months, consider starting a contraception method that’s not affected by these medications. You must consider doing it if you’re currently using:
- The progestogen-only pill
- The combined pill
- A patch
- An implant
- A vaginal ring
Contraception methods not affected by rifampicin or rifabutin are:
- The progestogen-only injection
- An intrauterine device (IUD)
- An intrauterine system (IUS)
Suppose you’ve been taking rifampicin or rifabutin for less than two months and want to continue the same hormonal contraception. In that case, you must discuss it with your doctor. The doctor may recommend you take this contraception differently from usual and also use condoms. You have to continue it for 28 days after completing the antibiotic course.
Another option for women having a contraceptive implant and needing a short dose of rifampicin is a single dose of the progestogen injection. The implant will stay in place while you are covered by the injection.
Conclusion
Most antibiotics do not affect contraception. The only type of antibiotics that are likely to interact with hormonal contraception making it less effective, are rifampicin-like antibiotics.uk
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