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How long is the morning-after pill effective for?

The sooner the morning-after pill is taken, the better. Best results happen when it is taken within the first 24 hours. It can be effective up to four days later, but by the fifth day it is not very effective at preventing pregnancy.

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About this article

Author: Dr Joanne Van der Velden PhD, BSc (Hons)
First answered: 18 Sep 2014
Last reviewed: 14 May 2019
Rating: 4.9 out of 5
Votes: 903 (Click smiley face below to rate)
Category: Fertility


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