MOA: Estrogens and Androgens Flashcards
Estradiol
Estrogen
Steroid hormone that diffuse across the cell membrane and bind to estrogen receptors inside, stimulating synthesis of specific RNA/protein
Estrone
Estrogen
Steroid hormone that diffuse across the cell membrane and bind to estrogen receptors inside, stimulating synthesis of specific RNA/protein
Estriol
Estrogen
Steroid hormone that diffuse across the cell membrane and bind to estrogen receptors inside, stimulating synthesis of specific RNA/protein
Leuprolide
GnRH Analogs
GnRH agonists - pulse dose increases FSH/LH production, and continuous dose decreases FSH/LH production
Gonadorelin
GnRH Analogs
GnRH agonists - pulse dose increases FSH/LH production, and continuous dose decreases FSH/LH production
Nafarelin
GnRH Analogs
GnRH agonists - pulse dose increases FSH/LH production, and continuous dose decreases FSH/LH production
Raloxifene
Selective Estrogen Receptor Modulator (SERM)
-Competes with estrogen for binding in breast tissue.
-Antagonist at breast tissue estrogen receptors - regresses breast cancer.
-Lower the risk of uterine cancer.
-Also decreases bone reabsorption and turnover.
Tamoxifen
Selective Estrogen Receptor Modulator (SERM)
-Competes with estrogen for binding in breast tissue
-Antagonist at breast tissue estrogen receptors - regresses breast cancer.
-Agonist at uterus estrogen receptors - increases risk of uterine cancer.
Clomiphene
Selective Estrogen Receptor Modulator (SERM)
-Acts as estrogen receptor antagonist at all receptor types
-Major action is to block estrogen-mediated negative feedback in the pituitary
-Increases FSH/LH
Drospirenone
Progestogens (Progestins)
Produced in response to LH and promotes the development of secretory endometrium
Levonorgestrel
Progestogens (Progestins)
Produced in response to LH and promotes the development of secretory endometrium
Medroxyprogesterone
Progestogens (Progestins)
Produced in response to LH and promotes the development of secretory endometrium
Megestrol
Progestogens (Progestins)
Produced in response to LH and promotes the development of secretory endometrium
Norelgestromin
Progestogens (Progestins)
Produced in response to LH and promotes the development of secretory endometrium
Norethindrone
Progestogens (Progestins)
Produced in response to LH and promotes the development of secretory endometrium