Norethisterone is a man-made form of progesterone, a naturally occurring female sex hormone. It is referred to as a progestogen and it has a number of uses. Low doses are used to prevent pregnancy, or as hormone replacement therapy (HRT). Its is used to treat heavy periods (menorrhagia), and high-strength tablets are sometimes used in some female cancers such as breast cancer. There are a number of other leaflets which will give you more information about norethisterone if you are taking it for contraception or as HRT. These are: 'Progestogen-only contraceptive tablets', 'Norethisterone contraceptive injection', 'Combined hormonal contraceptives', and 'Oestrogen and progestogen for HRT'.
Norethisterone (or norethindrone) (or 19-nor-17α-ethynyltestosterone) is a molecule used in some combined oral contraceptive pills, progestogen only pills and is also available as a stand-alone 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.
This leaflet discusses norethisterone when it is used to treat heavy periods. Although other treatment options for heavy periods are more common, norethisterone is sometimes considered if other treatments have not worked or are unsuitable. Norethisterone treatment aims to reduce the amount of blood loss. When taking norethisterone in this way, it does not act as a contraceptive.
Read More: Norethisterone suppliers
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