male hepatocytes metabolized estradiol-17 beta , 17 alpha-ethinylestradiol and mestranol extremely rapidly ( t 1/2 = 40 , 60 and 300 min , respectively ) , whereas these were more stable in cultures of female hepatocytes ( t 1/2 = 120 , 150 and 640 min , respectively ) .
C0015011
ethinylestradiol
C0025506
mestranol