Adrenal Drugs Flashcards
“Sassy-Passy”—Pasireotide is an agonist at _____ receptors, used to inhibit ACTH release
Pasireotide
What is the longest acting synthetic glucocorticoid with no mineralocorticoid potency?
Dexamethasone
The main competitive glucocorticoid receptor antagonist is ____
Mifepristone
Why is there hyerpigmentation in Addison’s Disease?
Excess ACTH is linked to alpha melanocyte factor
prednisone, prednisolone, and dexamethasone are all ______
Glucocorticoids
Why do glucocorticoid drugs need to be tapered gradually?
May take months for body to recover own function
What is the main mineralocorticoid drug?
Fludrocortisone
Mifepristone competitively inhibits the _____ Receptors
GC
Name the 5 Glucocorticoid drugs
- HydroCort
- Cortisone
- Prednisone
- Prednisolone
- Dexamethasone
Phenoxybenzamine is an irreversible ______
Alpha-1 Antagonist
2 Intermediate duration Glucocorticoid Drugs?
- Prednisone
- Prednisolone
“Predators are intermediates”
Mifepristone inhibits which receptor?
Glucocorticoid
Before surgically removing a pheochromocytoma, you need to give ____ before surgery and then consider ____ after surgery
- Alpha Blockers
- Beta Blockers
DA and SST both _____ ACTH release
Inhibit
Excess glucocorticoids have toxicities on glucose, fat, and protein usually after how long?
Greater than 2 Weeks
To treat Cushing’s, ______ boosts D2 receptors and ____ boosts SST receptors ultimately to inhibit ACTH release.
- Cabergoline
- Pasireotide
Cabergoline and Pasireotide are both _____ antagonists, but with different receptors targeting
ACTH
Prazosin, Terazosin, and Doxazosin are all reversible, competetitive ______
Alpha-1 Antagonists
2 MC receptor Antagonists
- Spironolactone
2. Eplerenone
Main inhibitor of catecholamine biosynthesis via Trysoine Hydroxylase inhibition?
Metyrosine
In 90% of patients, CAH results from mutations in _______, resulting in a buildup of pregnenolone that gets shunted into a Dehydroepi-androsterone pathway to make androgens. (look for ambiguous genitalia in newborns)
21-Beta-Hydroxylase
3 Primary toxicities of Glucocorticoid drugs
- Osteoporosis
- Muscle Wasting
- Hyperglycemia
First line treatment for Cushing’s Disease is ______
Surgery of tumor
Of the Glucocorticoid drugs, which 2 are the shortest acting?
- Hydrocortisone
2 Cortisone