The Plan B One-Step® Advantage

The sooner you take emergency contraception, the better it works. Plan B One-Step® is just one pill, so you get what you need right away. It's the only one-pill emergency contraception available over the counter for consumers age 17 and older.

And Plan B One-Step® can reduce the chance of pregnancy when taken as directed up to 72 hours (3 days) after unprotected sex (if your regular birth control method fails, or if you've had sex without birth control).