It should be possible to take it within 72 hours, but be sure to talk to your pharmacist first. I believe psotinor is effective if taken with the first 72 hours, and the other type of Plan B (the one that is just one pill) is effective within the first 120 hours after unprotected sex. So I would get to the store ASAP and check with the pharmacist to make sure you know which pill you're getting, and it's effectiveness rate. Good luck!
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