A female wanted to have an emergency contraception after an unprotected intercourse. Which of these is NOT useful as an emergency contraceptive?
LNG IUD
Oral Mifepristone
Oral Levonorgestrel
Cu-containing IUD
Post coital or emergency contraceptives are, Ethinyl oestradiol Conjugated estrogen Ethinyl oestradiol + Norgestrel Levonorgestrel Mifepristone Copper IUDs Ref: Textbook of Obstetrics by D.C. Dutta, 6th edition, Page 550.