Which tablet is best to prevent pregnancy?
Levonorgestrel pills have been shown to be 89% effective if taken up to 72 hours (3 days) after unprotected intercourse,” says Cristin Hackel, a nurse practitioner at Nurx, a telemedicine provider. “They do continue to work 72–120 hours (5 days) after intercourse, but to a much lesser degree,” explains Hackel.
