NCIt related terms : Norethisterone; Norlutin; Micronor;
NCIt definition : A synthetic progestational substance with some anabolic, estrogenic, and androgenic
properties. Norethindrone binds to the progesterone intracellular receptors in the
reproductive system and the resultant activated complex interacts with specific DNA
sites. This leads to an alteration in protein synthesis and results in an inhibition
of LH release. Consequently, it inhibits ovulation and changes the normal cycle of
cervical mucus and endometrium.;