I know Amoxicillin can make birth control pills not work. How long after I am off the antibiotic is it okay?

Question

I know Amoxicillin can make birth control pills not work. How long after I am off the antibiotic is it okay?

Answer 1

I know Amoxicillin stays in your body for a few days after you stop taking it.  However, I'm not sure what its half life is or anything to figure that out.  I don't think it's greater than a week, but I would contact your pharmacist to find out for sure.

Answer 2

If only it were so simple!

Antibiotics don't exactly counteract the BCP's, and the pills don't work on a day-to-day basis. It's best not to trust the pills without backup (like condoms) during that entire cycle.