Which of the following is not used as emergency contraceptive?: (A) Danazol, (B) Levonorgestrel, (C) Mifepristone, (D) IUCD
Answer is A. Isoxazole derivative of 17 - alpha ethinyl testosterone propeies Causes atrophy of endometrium It is strictly antigonadotropin but acts as an androgen agonist Mode of action Acting on the hypothalamo - pituitary - gonadal axis - depression of frequency of GnRh pulses - suppression of pituitary FSH and LH surge. There is however no change in the basal gonadotropin level Indication of danazol Endometriosis DUB Symptomatic fibroid Precocious pubey