Do antibiotics affect birth control pills?

Question is Closed
Report Favorite

Answers (1)

28 Sep 2009

Yes, antibiotics do affect birth control pill (combined oral contraceptives).

The effectiveness of estrogen-containing oral contraceptives may be impaired by concomitant treatment with antibiotics.

Just be aware that there is a risk of breakthrough bleeding and unintended pregnancy during concomitant antimicrobial therapy. Alternative or additional methods of birth control should be considered during and for at least one week beyond the last dose of short-term antimicrobial therapy, and for at least the initial weeks of long-term antimicrobial therapy when risk may be the greatest.

Votes: +0

Search for questions

Still looking for answers? Try searching for what you seek or ask your own question.

Similar questions

This is a warning not a question antibiotics decrease the effectiveness of birth control pills. I m?

... on antibiotics and I accidently skipped 2 pills and i got my period. That's how weak it makes contraceptives

1 answer 30 May 2012

Garlic and birth control pills?

Hi everyone. I just read that taking garlic pills and eating garlic can affect the effectiveness of birth control pills... The only problem is I ...

1 answer 27 Jul 2013

Birth control pills, antibiotics, sore tips of nipples?

Hi, I've been on combined monophasic bc pills for the past year or so. I noticed today that I have sore nipples. Only the tips of them, though. ...

2 answers 13 Aug 2014

I take birth control but I'm on antibiotics so we used a condom, it broke should I use planB?

I use microgestin for birth control and have been on it for three months. I was taking the antibiotics while on the filler pills. So I have just ...

2 answers 8 Dec 2014

Birth control and antibiotics?

Hello, I was recently put on penicillin for a nasty cold virus. I understand that being on antibiotics decreases the effectiveness of my pill ...

1 answer 11 Apr 2015