A member asked:

Hi, my partner and i talked and decided to take plan b 2 days later after the intercourse. how really effective is plan b between 48-72 hours?

A doctor has provided 1 answer

Plan B: is most effective when taken within the first 24 hours of intercourse and loses some effectiveness the further out it is taken. It is still effective 72 hours from intercourse. 89% effective at 72 hours

Answered 1/3/2015

3.4k views

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