How effective is Plan B?
The morning-after pill Plan B is most effective (>97%) when taken within 24 hours of unprotected sex and 75%-89% effective if you take it within three days.
Taking Plan B at the appropriate time after unprotected intercourse can help prevent unwanted pregnancies.
Emergency Contraceptives National Center for Health Research
Does Plan B Always Work? Morning-After Pill Q&A with Experts
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Plan B Emergency Contraception, NYS Approved OB/GYN, Brooklyn, NYC
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Morning After® Pill, Compare to Plan B, Emergency Contraceptive Levonorgestrel 1.5mg, 1 Tablet, Safe & Effective for Women of All Ages
