Norethisterone/[email protected]

Norethisterone (or norethindrone) (or 19-nor-17-ethynyltestosterone) is a molecule used in some combined oral contraceptive pills, progestogen only pills and is also available as a standalone drug. It is a progestogen and can be used to treat premenstrual syndrome, painful periods, abnormal heavy bleeding, irregular periods, menopausal syndrome (in combination with oestrogen), or to postpone a period. It is also commonly used to help prevent uterine hemorrhage in complicated non-surgical or pre-surgical gynecologic cases. Norethindrone was the first orally highly active progestin to be synthesized. It was synthesized for the first time by chemists Luis Miramontes, Carl Djerassi, and George Rosenkranz at Syntex in Mexico City in 1951. It was the progestin used in one of the first three oral contraceptives. Its related ester, norethisterone acetate, is used for the same indications.

Norethisterone is a progestogen and can be used to treat premenstrual syndrome, painful periods, abnormal heavy bleeding, irregular periods, menopausal syndrome (in combination with oestrogen), or to postpone a period. Norethisterone a synthetic hormone similar to the natural female sex hormone, progestogen. It is used in a wide range of menstrual disorders. One of its uses is to the postponement of menstruation, as well as treatment for menstrual disorders.( It would be taken on certain days of the menstrual cycle.) It can also be used as an oral contraceptive, it is also prescribed as a hormone replacement therapy (HRT) and is also of use as a treatment for certain breast cancers. In special circumstances It can be given as an injectable contraceptive, but only under special circumstances.