Norethindrone
Norethindrone (pronounced: nor-eth-IN-drone) is a synthetic progestin used in various forms of hormonal contraception, including birth control pills and menopausal hormone therapy. It is also used to treat endometriosis, a condition in which the type of tissue that lines the uterus grows outside of the uterus.
Etymology
The term "Norethindrone" is derived from the words "nor-", a prefix used in organic chemistry to denote a structure lacking a carbon atom, "ethin", referring to the presence of a double bond between two carbon atoms, and "drone", derived from the Greek word "dron", meaning "to run".
Pharmacology
Norethindrone is a progestin, a type of hormone that plays a role in the menstrual cycle and pregnancy. It works by stopping the ovaries from releasing eggs and thickening the cervical mucus to prevent sperm from reaching the egg. It also changes the lining of the uterus to prevent attachment of a fertilized egg.
Uses
Norethindrone is used in birth control pills to prevent pregnancy. It is also used in menopausal hormone therapy to treat symptoms of menopause such as hot flashes and vaginal dryness. In addition, it is used to treat endometriosis, a condition in which the type of tissue that lines the uterus grows outside of the uterus.
Related Terms
See Also
External links
- Medical encyclopedia article on Norethindrone
- Wikipedia's article - Norethindrone
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