Ohm My Choice Emergency Contraceptive | Levonorgestrel 1.5mg | 1 tablet (4pk) Compare to the active ingredient in Plan B One-Step Contains Levonorgestrel, an emergency contraceptive used to prevent pregnancy after a broken condom or unprotected sex For use within 72 hours (3 days) after sex, but the sooner you take it, the better it works This product is not for routine use Looking for an effective backup plan that helps prevent pregnancy from happening? Check out Ohm's My Choice Emergency Contraceptive that helps prevent pregnancy after unprotected sex or birth control failure. This emergency contraceptive pill is designed to be taken immediately after intercourse, with a maximum efficacy window of 72 hours. The pill is designed for single dosage only, and should never be taken in place of regular birth control. Compare to the active ingredient in Plan B One-Step.