Plan B: Emergency Pregnancy Prevention After Unprotected Sex - Evidence-Based Review

Product Description Plan B, commonly referred to as the “morning-after pill,” is an emergency contraceptive (EC) product. It is not a routine birth control method but is intended for use after unprotected intercourse or contraceptive failure (e.g., condom breakage, missed birth control pills) to prevent pregnancy. It is a single-dose, progestin-only medication containing levonorgestrel, a synthetic hormone widely used in various contraceptive formulations. The critical window for its use is within 72 hours (3 days) after unprotected sex, with efficacy declining as time passes.