reproduction Flashcards
GnRH analog w/agonist properties when given pulsatile. antagonist when given continuously. decrease FSH/LH. use: infertility (pulsatile) prostate cancer, uterine fibroids, precocious puberty. SE: antiandrogen.
leuprolide
bind estrogen receptors. use: hypogonadism or ovarian failure, menstrual anomalies. SE: endometrial cancer. clear cell adenocarcinoma (vagina), thrombus.
estrogens: ethinyl estradiol, DES, mestranol
SERM. estrogen antagonist in hypothalamus. prevent neg feedback. increase LH/FSH release. stimulates ovulation. SE: hot flashes, multiple simultaneous pregnancies.
Clomiphene
SERM. antagonist of estrogen in breast tissue. agonist in bone, and uterus. SE endometrial caner, thromboembolic events. ues: ER+ breast cancers.
tamoxifen
SERM. agonist at bone, antagonist in uterus. SE increased rick of thromboembolic event. use: osteoporosis.
raloxifene
Aromatase inhibitor used in postmenopausal women w/breast cancer (decrease estrogen).
Anastrozole, exemestane
bind progesterone receptors. decrease growth and increase vascularization of endometrium. use: OCP, endometrial cancer,abnormal uterine bleeding.
progestins
competitive inhibitor of progesterone receptors. use: termination of pregnancy. admin w/misoprostil.
Mifepristone
Beta-2 agonist that relaxes the uterus. used to decrease contraction frequency in women during preterm labor.
Terbutaline
synthetic androgen that acts a partial agonist at androgen receptor to decrease LH release (- feedback). use: endometriosis and hereditary angioedema.
Danazol
Agonist at androgen receptor. use: hypogonadism, promotes devo of secondary sex characteristics. SE: masculinization in females, gonadal atrophy in men, premature epiphyseal plate closure.
Testosterone, methyltestosterone.
5 alpha-reductase inhibitor (testosterone to DHT). use: BPH, male pattern baldness.
finasteride
nonsteroidal competitive inhibitor of androgens at testosterone receptor. use: prostate cancer.
Flutamide
inhibits steroid synthesis by inhibiting 17,20-desmolase. treat hirsutism in polycystic ovarian syndrome. SE: gynecomastia and amenorrhea.
Ketoconazole
inhibits steroid binding, 17,20-desmolase and 17-hydroxylase.. treat hirsutism in polycystic ovarian syndrome. SE: gynecomastia and amenorrhea.
spironolactone