Norethisterone

Norethisterone is a synthetic second-generation progestin used for contraception, prevention of endometrial hyperplasia in hormone replacement therapy, and in the treatment of other hormone-mediated illnesses such as endometriosis.

Norethisterone, also known as norethindrone, is a synthetic progestational hormone belonging to the 19-nortestosterone-derived class of progestins. It is further classified as a second-generation progestin, along with levonorgestrel and its derivatives, and is the active form of several other progestins including norethynodrel and lynestrenol.Norethisterone mimics the actions of endogenous progesterone, albeit with a greater potency, and is used on its own or in combination with estrogen derivatives in a variety of applications including contraception and hormone replacement therapy.

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