Estriol (E3), also spelled oestriol, is a steroid, a weak estrogen, and a minor female sex hormone. It is one of three major endogenous estrogens, the others being estradiol and estrone. Levels of estriol in women who are not pregnant are almost undetectable. However, during pregnancy, estriol is synthesized in very high quantities by the placenta and is the most produced estrogen in the body by far, although circulating levels of estriol are similar to those of other estrogens due to a relatively high rate of metabolism and excretion. Relative to estradiol, both estriol and estrone have far weaker activity as estrogens. Although it is less commonly used than other estrogens, estriol is available for medical use throughout the world in a variety of formulations, including for oral and vaginal administration
Function:
1). Used for cervicitis, especially used in menopause syndrome, senile vaginitis. 2). Can be used for middle and induced labor abortion computer-aided drug. 3). For prostate hypertrophy, prostate cancer. 4). A rise of white peripheral role, generally in after 1 ~ 3 st, but maintain a relatively short time role. Chemotherapy or radiation therapy to reduce the effective cause of the white blood cells. 5). Can reduce the blood vessels of the permeability and brittle, and can be used in the treatment of bleeding, to period overmuch, tonsils or after hysterectomy, all have fast hemostatic effect.ption.
Application:
1. For cervicitis, especially for menopausal syndrome and senile vaginitis.
2. It can be used as adjuvant drugs for medium-term induced abortion and induced abortion.
3. Used for prostatic hypertrophy, prostate cancer, etc.
4. It has the effect of rapidly increasing peripheral white blood cells, generally effective from 1 to 3 days after the administration of drugs, but the effect lasts for a short time. It is effective for leukopenia caused by chemotherapy or radiotherapy.
5. It can reduce the permeability and brittleness of blood vessels, and can be used for the treatment of multiple bleeding. It has a rapid hemostasis effect after excessive menstruation, tonsil or hysterectomy.
Specification: