A member asked:

How effective is the plan b pill?

4 doctors weighed in across 2 answers
Dr. Robert Killian answered

Specializes in General Practice

Plan B: Plan b works. But it is not meant for frequent use.

Answered 11/19/2014

4.9k views

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Dr. Heidi Fowler answered

Specializes in Psychiatry

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 11/18/2014

3.5k views

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