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Plan B One-Step is a single tablet you take by mouth. It must be taken as directed within 72 hours (3 days) after unprotected sex or birth control failure to help prevent pregnancy. The sooner you take it, the better it works.
It’s a backup method of birth control you can use when:
If you have any questions about whether you should take Plan B One-Step, please talk to your healthcare professional.
You should resume your regular method of birth control right away—or start one, if you don’t have a regular method—since Plan B One-Step does not protect against additional incidents of unprotected sex. For more information, talk to your healthcare professional.
Do not take Plan B One-Step:
You will know Plan B One-Step worked when you get your next period, which should come at the expected time, or within a week of the expected time. If your period is more than a week late, it is possible you may be pregnant. You should get a pregnancy test and follow up with your healthcare professional.
Plan B One-Step won’t protect you against HIV/AIDS or other sexually transmitted diseases (STDs).
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