A 19-year-old female asked:
I am on keflex for acne, as well as mononessa for bc, my dermo told me keflex would not interfere with the bc pills- is this true?
1 doctor answer • 1 doctor weighed in
Pediatrics 24 years experience
Conflicting studies: 1st of all, no oral bc is 100% effective in preventing pregnancy. 2nd, antibiotics can interact with bc and possibly reduce bc effectiveness. 3rd, study results are conflicting -- some said antibiotics use while on bc increases risk of pregnancy, others said they don't. Advice: if worried, use a 2nd method of bc such as condom (which can lower risk of contracting stds).
4.8k viewsAnswered >2 years ago
Last updated Jul 12, 2017
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