Levonorgestrel 1.5 mg: Emergency Contraception for Post-Coital Pregnancy Prevention - Evidence-Based Clinical Review

1. Clinical Introduction: What is Plan B and Its Role in Reproductive Medicine Let me be straight with you - Plan B isn’t some mysterious “abortion pill” like patients often think. It’s levonorgestrel, a progestin we’ve been using in birth control for decades, just at a higher single dose. The confusion frustrates me every time I see it in clinic. Plan B One-Step (levonorgestrel 1.5 mg) represents a concentrated single-dose formulation of a synthetic progestogen that’s been FDA-approved since 1999 for emergency contraception.