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A member asked:
What is the percentage that plan b will work if taken after 42 hours?
2 doctors weighed in across 2 answers
Lowers risk: Plan b decreases the risk of pregnancy by about 70%.
Answered 6/30/2014
4.6k views
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Plan B: Plan B One-Step is up to 89 % effective when taken within 72 hours (3 days) after unprotected sex. It can reduce chance of pregnancy by up to 95% if used within 24 hours. It continues to reduce the risk of pregnancy up to 120 hours (5 days) after unprotected sex, but is less effective as time passes.
Answered 9/8/2017
556 views
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