Pharm Audio Review Flashcards
Estrogen low levels
negative feedback
Estrogen high levels
positive feedback
Testosterone and Progesterone
always negative feedback on HPA axis
Leuprolide
long acting gnrh agonist
Initial surge of gonadotropins, eventually inhibit
Use: DOC for endometriosis, Precocious puberty, PCOS, etc
SE of Long acting gnrh
Men: Testicular atrophy
Women: menopause like sx
What to use with long acting gnrh
Flutamide
Cetrorelix
long acting gnrh antagonist
Suppress HPA axis DIRECTLY
Use: IVF
FSH
HMG is prototype
Used with LH
LH
Hcg is prototype (human chorionictropic)
LH and FSH use
Induce spermatogeneis
LH 1st,
then FSH to increase spermatogenesisi
LH and FSH use
women
Start w FSH to stimulate development of follicles, THEN
Single LH dose to induce ovulation
SE of LH and FSH
Ovarian enlargement
Ovarian hyperstimulation syndrome!! emergency
Mult births
Gynecomastia in men
Estrogen
Estradiol is prototype- most imp in body
Transdermal: patch or cream
Estrogen use
Oral contraception Post-menopausal HRT Girls in primary hypogonadism (stimulate puberty) Tx dysmenorrhea Androgen dependent CA (silence HPA axis) Male-->Female
Estrogen SE
Uterine hyperplasia
add progesterine to prevent this!
Estrogens
TERATOGENIC
Anti Estrogen
Breast CA drugs
Anti Estrogens
Tamoxifen
Clomiphene
Raloxifen
Tamoxifen
Agonist in uterus and bone
Increased risk of uterus CA
Prevents bone loss! good
Tamoxifen
SERMS
selective estrogen reuptake ***?
Raloxifene
Agonist in Bone (good as well)
Use for: Post-menopausal osteoporosis
Antagonist in uterus and breast
Tamoxifen and Raloxifene are both agonist in
BONE
Antagonist to breast
The difference b/w the two: Tamoxifen is agonist in Uterus, Raloxifene is antagonist in uterus.
Aromatase Inhbiitor
inh synth of Estrogen specifically
DOC: estrogen dependent Breast CA in post-menopausal women
Mifepristone
Gluco and Progestine receptor ANTAGONIST
Mifepristone
Pregnancy termination (in combo with Prostaglandin)
Mifepristone
Large amt of GI side effects
CONTRA: breastfeeding, pregnancy
Combo birth control
Drosperinone Mineralo receptor antagonist *The one drug int his class that is FDA approved to reduce PMDD sx
Plan B
high does Levonorgestrol
After hysterectomy
DO NOT NEED To and should not give Progesterone
Use: Estrogen only
Replacement therapy MUST be used in pre-menopausal where
Ovaries no longer functioning or have been removed
Androgen use
Negative nitrogen balance
Protenemia of hydronephrosis