morning after pill

Dosage

• levonorgestrel 1.5 mg (One Step now advertised on WebMD) & ulipristal are used
• Ovral was used in 1998, but require 4 pills & 2 visits or at least doses 12 hours apart.

Drug interactions

• drugs that interfere with metabolism of levonorgestrel or ulipristal

• drug interaction(s) of beta-adrenergic receptor antagonists with oral contraceptives
• drug interaction(s) of NSAIDs with oral contraceptive

More general terms

• levonorgestrel (Norplant)
• ulipristal acetate (Ella)