CLOMID (clomiphene citrate tablets USP) DESCRIPTION CLOMID (clomiphene citrate tablets USP) is an orally administered, nonsteroidal, ovulatory stimulant designated chemically as 2-[p-(2-chloro-1,2-diphenylvinyl)phenoxy] triethylamine
ثبت نشده
چکیده
Clomiphene citrate is capable of interacting with estrogen-receptor-containing tissues, including the hypothalamus, pituitary, ovary, endometrium, vagina, and cervix. It may compete with estrogen for estrogen-receptor-binding sites and may delay replenishment of intracellular estrogen receptors. Clomiphene citrate initiates a series of endocrine events culminating in a preovulatory gonadotropin surge and subsequent follicular rupture. The first endocrine event in response to a course of clomiphene therapy is an increase in the release of pituitary gonadotropins. This initiates steroidogenesis and folliculogenesis, resulting in growth of the ovarian follicle and an increase in the circulating level of estradiol. Following ovulation, plasma progesterone and estradiol rise and fall as they would in a normal ovulatory cycle.
منابع مشابه
CLOMID® (clomiphene citrate tablets USP)
Clomiphene citrate is a white to pale yellow, essentially odorless, crystalline powder. It is freely soluble in methanol; soluble in ethanol; slightly soluble in acetone, water, and chloroform; and insoluble in ether. CLOMID is a mixture of two geometric isomers [cis (zuclomiphene) and trans (enclomiphene)] containing between 30% and 50% of the cis-isomer. Each white scored tablet contains 50 m...
متن کاملDirect evidence of estrogen modulation of pituitary sensitivity to luteinizing hormone-releasing factor during the menstrual cycle.
To delineate the role of estradiol in the augmented pituitary gonadotropin responsiveness to synthetic luteinizing hormone releasing factor (LRF) seen during high-estrogen phases of the ovulatory cycles (late follicular and midluteal phases), the anti-estrogenic effect of clomiphene citrate (Clomid) on pituitary response to LRF was evaluated during different phases of the ovulatory cycle. Clomi...
متن کاملThe inhibition of the estrogen receptor's positive cooperative [3H]estradiol binding by the antagonist, clomiphene.
The calf uterine estrogen receptor showed positive cooperativity of [3H]estradiol equilibrium binding; the Scatchard plot was convex and the Hill coefficient was 1.69 +/- 0.021 (n = 14). The effects of the estrogenic antagonists, zuclomiphene (cis-2-(p-[2-chloro-1,2-diphenylvinyl]phenoxy)triethylamine citrate) and enclomiphene (trans-23-(p-[2-chloro-1,2-diphenylvinyl]phenoxy)triethylamine citra...
متن کاملP-192: Association of Cytochrome P450 2D6 (CYP2D6) Gene Polymorphism with Clomiphene Citrate Treatment in Iranian Infertile Women with Polycystic Ovary Syndrome
Background: Clomiphene Citrate (CC) is the most frequently administered drug for the treatment of female infertility [e.g. polycystic ovary syndrome (PCOS)]; which aims at restoring ovulation. Clomiphene is metabolized by CYP2D6, an important enzyme responsible for the metabolism of approximately 25% of clinically used drugs. CYP2D6 is very polymorphic and thought to result in inter- individual...
متن کاملP-227: The Survey on Endometrial Thickness and Echo Pattern Changes in Consecutive Cycles of Clomiphene Citrate Therapy in Infertile Women
Background: One of the most common causes of infertility in women is ovulatory dysfunction (PCOS) and the choice of treatment is clomiphene citrate. One of the mechanism of dichotomy between the rate of ovulation and pregnancy is anti estrogenic effects of clomiphene citrate on endometrium. According to its long half life, the anti estrogenic effects probably exacerbate in consecutive cycles. W...
متن کامل