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A member asked:
Can antibiotics make my birth control and plan b not work? i took them yesterday i had unprotected sex but im suppose to start antibiotics today
7 doctors weighed in across 2 answers
Yes at times: Some antibiotics interfere with bcp so use of a backup method like condoms is recommended. However, if you took Plan B yesterday and do not start antibiotics till today, there will be no interference as the Plan B is now metabolized.
Answered 9/28/2016
5.2k views
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Which antibiotic?: Antibiotics which can affect Plan B: ampicillin, cotrimoxazole (in Bactrim), Rifampin, tetracycline, & clarithromycin
Answered 10/23/2017
553 views
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