adrenergic antagonists Flashcards
terazosin
alpha 1 selective antagonist
yohimbine
alpha 2 selective antagonist
no established clinical role
may be useful in hypotensive emergencies
reserpine
adrenergic neuron blocking drug
inhibits VMAT = no packaging of NE = no neuron release
tolazoline
nonselective alpha antagonist
esmolol
beta1 selective antagonists
rapidly hydrolyzed - HL = 10 min
cartelolol
nonselective beta antagonist
significant intrinsic sympathomimetic effects
butoxamine
beta 2 selective antagnoist
no clinical application - take away B2 and the bronchioles will collapse down
alfuzosin
alpha 1 selective competitive antagonist
good at BPH - may be selective for the prostate somehow
labetalol
alpha 1 selective antagonist
guanadrel
adrenergic neuron blocking drugs
gets taken up by VMAT slowly and displaces NE = no NE release
nadolol
nonselective beta antagonist
long duration of action
good for open angle glaucoma
levobunalol
nonselective beta antagonist
metipranolol
nonselective beta antagonist
propranolol
nonselective beta antagonist
extensive first pass metabolism (low bioavalibility)
tamsulosin
alpha 1 selective competitive antagonist
good in BPH - may be selective to the prostate somehow
betaxolol
beta1 selective antagonists
labetalol
nonselective beta antagonist
reversible alpha 1 antagonist - lowers the BP (the beta blocker helps with the reflex tach
metoprolol
beta1 selective antagonists
atenolol
beta1 selective antagonists
prazosin
alpha 1 selective antagonist
phenoxybenzamine
nonselective irreversible alpha antagonist
treatment for pheochromocytoma
postural hypotnesion and tachy limit use
nebivolol
beta1 selective antagonists
phentolamine
nonselective competitive alpha(1 and 2) antagonist
produces reflex tach
timolol
nonselective beta antagonist
long duration of action
use for treatment of open angle glaucoma
penbutolol
nonselective beta antagonist
bisprolol
beta1 selective antagonists
doxazosin
alpha 1 selective antagonist
longer half life
used in hypertension and BPH
pindolol
nonselective beta antagonist
significant intrinsic sympathomimetic effects
silodosin
alpha 1 selective antagonist
acebutolol
beta1 selective antagonists
significant intrinsic sympathomimetic effects (partial agonists)