the authors studied gonadotropin levels before and during intravenously ( iv ) pulsatile lh-rh therapy ( 50 to 100 ng/kg body weight/90 to 120 minutes ) in three anorexia nervosa and two weight loss amenorrhea patients , during both placebo and naloxone administration ( 2 mg iv bolus plus 4 mg infusion lasting 120 minutes ) .
C0023610
lh-rh
C0002453
amenorrhea