the bacterial enzyme was inhibited by norethisterone ( ki = = 13.7 x 10 ( -6 ) mol ) and by norethisterone acetate ( ki = 12.1 x 10 ( -6 ) mol ) , whereas no inhibition by norethisterone was noted in the rat testis enzyme assay systems .
C0068980
norethisterone
C0028356
norethisterone