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A member asked:

Girlfriend and i have been using pull out method while she is on doxycycline and birth control. should i be worried about effects of doxy on bcp?

A doctor has provided 1 answer
Dr. Donald Alves answered

Specializes in Emergency Medicine

Yes: Antibiotics can disrupt the effectiveness of birth control pills, and secondary prevention method should be used. Safest is to cover two ovulation cycles. (ps: the common term for those who rely on the pull-out method is "parents "--be careful, it is not highly effective).

Answered 8/23/2013

5.3k views

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A member asked:

Can doxycycline hyclate 100g and/or spironolactone 100g decrease the effectiveness of birth control pill (Junel fe 1.5/30)? I take bc pill daily but had sex without condom (did not finish inside) 2 days after ovulation (had sex on day 16)

A doctor has provided 1 answer

A member asked:

Currently on doxycycline once a day for acne.. also on junel fe 1/20 birth control pills had sex without condom but no ejaculation inside.. pregnancy risk?

2 doctors weighed in across 2 answers

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