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A member asked:
Will doxycycline (50 mg per day) make my junel fe (birth control) pills less effective?
A doctor has provided 1 answer
Safe > Sorry: While no evidence shows that any antibiotic except rifampin alters the effectiveness of oral contraceptives, the package inserts will likely say that there could be a problem with the interaction. I would advise you to use a back-up form of contraception while on the doxy.
Answered 12/1/2017
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Can doxycycline hyclate 100g and/or spironolactone 100g decrease the effectiveness of birth control pill (Junel fe 1.5/30)? I take bc daily but had sex without condom (did not finish inside). how much less effective is the pill? Should i get plan b?
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