Beta Blockers Flashcards
beta blocker suffix
-lol
receptors found in the heart
primarily beta 1
to a lesser extent beta 2
beta 1 specific beta antagonists
metoprolol acebutolol alprenolol atenolol betaxolol celiprolol esmolol nebivolol
Non-specific beta blockers (no specificity for either beta 1 or beta 2)
propanolol carteolol penbutolol pindolol timolol
beta 1 selective beta blocker with an extremely short half life
esmolol
beta blockers with intrinsic sympathomimetic activity
pindolol carteolol acebutolol labetalol penbutolol
3rd generation beta blocker with N.O. production and beta 2 receptor agonism
carteolol
3rd generation beta blocker with alpha 1 receptor antagonism, Ca entry blockade, and antioxidant activity
carvedilol
3 ways drugs can compensate for vasoconstrictive effects observed immediately after giving beta blocker therapy
alpha-1 receptor antagonism
Ca entry blockade
NO production
In the membrane stabilizing activity of _____, _____, and _____, Na channels are bound and blocked.
propanolol
acebutolol
carvedilol
Do beta blockers reduce BP in normotensive patients?
No
Function of beta 1 receptors on juxtaglomerular A cells.
renin release
Adverse CV effects of beta blockers.
CHF in pts relying on sympathetic activity to maintain cardiac output
bradycardia or bradyarrhythmias in patients with AV conduction defects
Cold extremities
ABRUPT DISCONTINUATION AFTER LONG-TERM TREATMENT CAN EXACERBATE ANGINA AND INCREASE RISK OF SUDDEN DEATH
“Off target” pulmonary effects of beta blockers
blockade of beta 2 receptors on bronchial smooth muscle
Beta blockers with moderate to high lipid solubility
penbutolol propranolol timolol metoprolol carvedilol betaxolol