The World Health Organization's ATC classification organizes medical drugs based on therapeutic properties, chemical composition, and anatomy. It helps make essential medicines readily available globally and is widely used in the pharmaceutical industry.
| Level | Code | Title | |
|---|---|---|---|
| 1 | G | Genito urinary system and sex hormones | |
| 2 | G03 | Sex hormones and modulators of the genital system | |
| 3 | G03C | Estrogens | |
| 4 | G03CC | Estrogens, combinations with other drugs | |
| 5 | G03CC04 | Estrone |
| Active Ingredient | Description | |
|---|---|---|
| Estrone |
Estrone is an aromatized C18 steroid with a 3-hydroxyl group and a 17-ketone. Estrone is a major mammalian estrogen. It is converted from androstenedione directly, or from testosterone via estradiol. It is produced primarily in the ovaries, placenta, and in peripheral tissues (especially adipose tissue) through conversion of adrostenedione. |
