First dose within 48 hours after unprotected intercourse followed by second dose 12 hours later
May also be taken as single dose (double dose)
Relative risk reduction of pregnancy = 89% (1% with  vs 8% without)
Effectiveness may be reduced in obese patients; some emerging evidence suggests doubling dose for obese patients
May also be taken as single dose (double dose)
Effectiveness may be reduced in obese patients; some emerging evidence suggests doubling dose for obese patients
Nausea (23%)
Vomiting (6%)
No teratogenesis
Plan B (marketed specifically for<unk>  - levonorgestrel 0.75mg PO per pill
Should be given as soon as possible after intercourse; labeled for use up to 72 hours post-coitus, however may still be moderately effective up to 5 days after
levonorgestrel (Plan B and generics) 0.75mg PO Q12H x2 doses
May also be taken as one-time dose of levonorgestrel 1.5mg PO once
Should be given as soon as possible after intercourse; labeled for use up to 72 hours post-coitus, however may still be moderately effective up to 5 days after
levonorgestrel (Plan B and generics) 0.75mg PO Q12H x2 doses
Emergency contraception
Levonorgestrel
Misoprostol
Resuscitative hysterotomy
Betamethasone
Expedited partner therapy
Pelvic ultrasound 
Against medical advice