Exam 2: Adrenergic Antagonists Flashcards
reversible antagonists
phentolamine, tolazoline, prazosin, labetalol
irreversible antagonists
phenoxybenzamine
non-selective alpha antagonists are used to treat ____
pheochromocytoma
alpha receptors primarily on ___ muscle
smooth
phentolamine is a ___ antagonists for alpha, it causes a ____ in vasc. resistance, minor ___ stimulation, and is used to treat pheochromocytoma, along with male ___
competitive, reduction, cardiac, ED
phenoxybenzamine treats pheochromo.., and inhibits ___ reuptake, and it lasts for ___
NE, days
prazosin treats ___ and ___, its highly selective for ___ so there’s no tachycardia occurring
HTN and BPH, alpha 1, some alpha 2
beta blokcing agents work on the __ and treat ___
heart, anxiety
Beta blocking agents have major
1st pass metabolism
inotropic means ___, chrono means ___,
force/strength, rate of contraction
beta blockers are ___ inotropes and chronotropes
negative
respiratory effects: increased airway ___, eye: decreased ___, metabolism: ____ lipolysis
resistance, IOP, inhibit
propanolol works on ____, metoprolol works mainly on ___, nebivolol works on ___, nadolol is ____, labetalol is racemic and can work on __ and __
beta 1 and beta 2, beta 1, b1, nonselective, alpha 1 and beta
esmolol is very short acting, it can be used to treat intra op ___, its __ selective
tachycardia, beta1
all other drugs are compared to ___
propanolol