How effective is Plan B?

The morning-after pill Plan B is most effective (>97%) when taken within 24 hours of unprotected sex and 75%-89% effective if you take it within three days.
Taking Plan B at the appropriate time after unprotected intercourse can help prevent unwanted pregnancies.

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How does Plan B® work?

How effective is Plan B?

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Can you take Plan B while on the birth control pill?

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