the metabolic clearance rate ( mcr ) of norethindrone acetate ( neta ) and norethindrone ( net ) levels in plasma were studied after an iv injection of [ 3h ] neta in three women before and at 1 week , 1 , 2 and 6 months following the insertion of a single silastic subdermal implant releasing microquantities of neta .
C0028356
norethindrone
C0068980
neta