we have examined the pharmacokinetic parameters derived from the analysis of plasma ethinyl estradiol ( ee ) and norethindrone levels after administration of a single dose of three bioequivalent norethindrone-1mg/mestranol ( me ) -50 micrograms formulations ( ortho-novumr 1/50 , norinylr 1/50 and norcept-mr 1/50 ) and three norethindrone-1mg/ethinyl estradiol-35 micrograms formulations ( ortho-novum 1/35r , norinylr 1/35 , norcept-er 1/35 ) in a randomized crossover design involving 24 women for the 35 micrograms and 27 women for the 50 micrograms agents .
C1260235
norethindrone
C0722328
ortho-novum