@CW0605 @flyaway4me
Antibiotics & the Pill:
The only antibiotics clinically and scientifically proven to lessen the efficacy of hormonal contraception are enzyme inducing rifampicin-like antibiotics ({yNJf-h2o4} They're used to treat conditions like tuberculosis and meningitis. Doctors often recommend using a nonhormonal backup method during the course of other antibiotics because some antibiotics have side effects like vomiting and severe diarrhea, which would lessen your protection in the form of causing missed pills. Also, some women aren't as good about remembering to take their pills when they are sick and not feeling well. Some other medications (not antibiotics) can lessen your protection, which is why it is important to tell your doctor any and all medications you are on.
If you were on rifabutin/rifampicin you would need to use backup protection for 28 days after your last dose of antibiotics.
Specific medications that affect your protection will be listed in your pamphlet. Some common ones (other than rifampicin) are Toprimate (anti seizure drug), St. John's Wort (often in teas, etc), and the emergency contraception Ella One.
Here's some helpful links on the subject, from reliable sources like planned Parenthood.
Antibiotics & Birth Control (Planned Parenthood):
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Antibiotics, Birth Control, and How Long to Wait After Rifampicin (NHS, UK):
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Which antibiotics make the pill less effective?
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Do broad spectrum antibiotics make the pill less effective?
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And in terms of other medications that lessen the efficacy of the pill, here's some info on that: {PCJf-h2OT}
Also, check out this brilliant post by @beesandhoney that offers a more in depth and scientific explanation of this: {z0Jf-h26e}
