I'm on tetracycline and I took Plan B. Will it not work because of the antibiotics?

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hannah
User offline. Last seen 1 year 47 weeks ago. Offline
Joined: 03/11/2010

I took tetracycline final night. Then had sex, took the Plan B tablet this morning. I haven't taken any more tetracycline nowadays. Will the plan b work?


Manda
User offline. Last seen 1 year 27 weeks ago. Offline
Joined: 07/31/2010

Are you on tetracycline long term, or was that the first time you took it? Taht will determine how much of the antibiotic is in your blood stream. Because Plan B is a higher dose of hormones than a daily birth control pill (which can be affected by the antibiotics), my personal opinion is that it would not be affected enough that it wouldn't work. However, you should still take a pregnancy test in a few weeks to make sure.

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