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A member asked:

I took a zyrtec (cetirizine) at 6:30 this morning . and later today at 6:54 to be exact i took plan b . will it still wrk ?

A doctor has provided 1 answer
Dr. Heidi Fowler answered

Specializes in Psychiatry

That is fine.: 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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