Norethindrone

Norethindrone, also known as norethisterone, is a synthetic progestogen, a type of synthetic hormone that mimics the effects of progesterone in the body. It is a commonly used medication in various medical applications.

One of the primary uses of norethindrone is in hormonal contraceptives. It is a key component in many combined oral contraceptive pills, where it is typically paired with an estrogen. It is also available in progestin-only pills, often referred to as "mini-pills." These contraceptives work by preventing ovulation, thickening cervical mucus to hinder sperm entry, and altering the uterine lining to make implantation less likely.

Beyond contraception, norethindrone is prescribed for managing gynecological conditions. It is used to treat heavy or irregular menstrual bleeding, endometriosis, and painful periods (dysmenorrhea). It can also be used in hormone replacement therapy, often to counteract the effects of estrogen in women who have a uterus.

Norethindrone is administered orally in pill form, and its dosage and specific formulation depend on the intended medical purpose. Like all medications, it can have side effects, which may include changes in menstrual bleeding patterns, breast tenderness, mood changes, and nausea. It is important to consult with a healthcare professional for appropriate use and to discuss potential risks and benefits.