Progesterone
生产企业：Bristol myers squibb, Amarin pharmaceuticals inc，另有 9 家
Progesterone is a hormone used for a variety of functions, including contraception, control of abnormal uterine bleeding, maintenance of pregnancy, and prevention of endometrial hyperplasia.
Progesterone is a hormone used for a variety of functions, including contraception, control of abnormal uterine bleeding, maintenance of pregnancy, and prevention of endometrial hyperplasia.
Progesterone binds and activates its nuclear receptor, PR, which plays an important part in the signaling of stimuli that maintain the endometrium during its preparation for pregnancy. Progesterone receptor (PR) is a member of the nuclear/steroid hormone receptor (SHR) family of ligand-dependent transcription factors that is expressed primarily in female reproductive tissue as well as the central nervous system. As a result of its binding its associated steroid hormone, progesterone, the progesterone receptor (PR) modulates the expression of genes that regulate the development, differentiation, and proliferation of target tissues . In humans, PR is found to be highly expressed in the stromal (connective tissue) cells during the secretory phase and during pregnancy . Progesterone may prevent pregnancy by changing the consistency of cervical mucus to be unfavorable for sperm penetration, and by inhibiting follicle-stimulating hormone (FSH), which normally causes ovulation. With perfect use, the first-year failure rate for progestin-only oral contraceptives is approximately 0.5%. The typical failure rate, however, is estimated to be approximately 5%, due to late or missed pills .
Gelatinized capsules The gelatinized capsules are indicated for use in the prevention of endometrial hyperplasia in non-hysterectomized postmenopausal women who are receiving conjugated estrogens tablets. They are also indicated for use in secondary amenorrhea . Vaginal gel Progesterone gel (8%) is indicated as progesterone supplementation or replacement as part of an Assisted Reproductive Technology (“ART”) treatment for infertile women with progesterone deficiency. The lower concentration progesterone gel (4%) is used in the treatment of secondary amenorrhea, with the use of the 8% concentration if there is no therapeutic response to the 4% gel . Vaginal insert This form is indicated to support embryo implantation and early pregnancy by supplementation of corpus luteal function as part of an Assisted Reproductive Technology (ART) treatment program for infertile women . Injection (intramuscular) This drug is indicated in amenorrhea and abnormal uterine bleeding due to hormonal imbalance in the absence of organic pathology, such as submucous fibroids or uterine cancer . Tablets, contraceptive The tablet form of progesterone in contraceptive formulations is indicated for the prevention of pregnancy .
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