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Do antibiotics lessen the effectiveness of Plan B like they do for regular birth control pills?
Sarah: I’ve heard this a lot—mostly as a 7th-grade-style rumor that pits bacterium against potential fetus. I don’t actually know if it’s true, simply because of the sheer volume
Not necessarily. There are a lot of rumors about antibiotics and birth control pills but in fact most antibiotics have not been shown to interfere with the effectiveness of birth control. You can learn more about this on Planned Parenthood’s website where they describe how only the antibiotic rifampin has been linked to decreased effectiveness of birth control and how most antibiotics are safe to use with birth control as well as emergency contraception.