progestational agent

progestational agent
any of a group of hormones secreted by the corpus luteum and placenta and in small amounts by the adrenal cortex, including progesterone; they induce the formation of a secretory endometrium. Many are now also produced synthetically, and their uses include contraception, hormone replacement therapy, and treatment of menstrual disorders, of endometriosis, of infertility, of hormonally responsive carcinomas, and of anorexia and significant weight loss associated with AIDS or cancer. Called also gestagen, progestagen, progestin, progestogen, and progestational hormone.

Medical dictionary. 2011.

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  • progestational — 1. Favoring pregnancy; conducive to gestation; capable of stimulating the uterine changes essential for implantation and growth of a fertilized ovum. 2. Referring to progesterone, or to a drug with progesterone like properties. * * *… …   Medical dictionary

  • progestational hormone — 1. progesterone. 2. see under agent …   Medical dictionary

  • test — 1. To prove; to try a substance; to determine the chemical nature of a substance by means of reagents. 2. A method of examination, as to determine the presence or absence of a definite disease or of some substance in any of the fluids, tissues,… …   Medical dictionary

  • Progestin-induced virilisation — Maternal use of androgens or high doses of certain weakly androgenic synthetic progestogens (progestins) structurally related to testosterone can masculinize (virilize) the external genitalia of a female fetus during susceptible times in… …   Wikipedia

  • Progesterone — A female hormone, progesterone is the principal progestational hormone. Progestational hormones prepare the uterus (the womb) to receive and sustain the fertilized egg. * * * An antiestrogenic steroid, believed to be the active principle of the… …   Medical dictionary

  • lynestrenol — A progestational agent, used with mestranol as an oral contraceptive. SYN: ethinylestrenol. * * * lyn·es·tre·nol lin es trə .nȯl, .nōl n a progestational steroid C20H28O used esp. in birth control pills * * * lyn·es·tre·nol (lin esґtrə nol) …   Medical dictionary

  • norethindrone — A potent orally effective progestational agent with some estrogenic and androgenic activity; used as a substitute for progesterone and, in combination with an estrogen, as an oral contracepti …   Medical dictionary

  • progestogen — 1. Any agent capable of producing biologic effects similar to those of progesterone; most progestogens are steroids like the natural hormones. 2. A synthetic derivative from testosterone or progesterone that has some of the physiologic activity… …   Medical dictionary

  • megestrol acetate — A synthetic progestin with progestational effects similar to those of progesterone; current uses include palliation in breast cancer and as an appetite stimulant in advanced malignancy. * * * me·ges·trol acetate me jes .trȯl …   Medical dictionary

  • melengestrol acetate — A progestational agent. * * * mel·en·ges·trol acetate .mel ən jes .trȯl , .trōl n a progestational and antineoplastic agent C25H32O4 that has been used as a growth stimulating feed additive for beef cattle * * * mel·en·ges·trol ac·e·tate (mel… …   Medical dictionary

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