BETA Blockers Flashcards
What are the types of BETA adrenergic receptor antagonists
- Non selective first generation
- B1- selective second generation
- Non selective third generation
- B1-selective third generation
Non selective first generation antagonist drugs
- Nadolol
- propranolol
- Timolol
- Sotalol
B1-selective second generation antagonist drugs
- Atenolol
- Bisoprolol
- Esmolol
- Metoprolol
Non selective third generation antagonist drugs
- Carvedilol
- Labetalol
B1-selective third generation antagonist drugs
nebivolol
B1-Receptor heart function
- heart rate
- contractility
- automaticity
- conduction velocity
B2-Receptor function lungs
- Bronchorelaxation
B1- receptor function in kidneys
renin release in kidneys
B2- receptor function in skeletal muscle
- vasodilation
- glycogenolysis
B2- receptor function in liver
- Glycogenolysis
- Gluconeogenesis
1/2 life of most B-antagonist
3-10 hours
what drug is the exception to the 1/2 life rule
Esmolol. Has a 1/2 life of 10 minutes
What drugs are not limited to varying degrees due to first pass metabolism
Betaxolol, Penbutolol, pindolol, sotalol
BePPiS
partial agonists
Depends on the activity of the sympathetic nervous system
EX: ligand for receptor is high the drug acts as antagonist, if it is low drugs can bind and activate it
what drugs block a1 receptors?
Labetalol, carvedilol
Vasodilator drugs
Nebivolol
Antioxidant drugs
Carvedilol
BETA blocker effects on the eye
Reduce the intraocular pressure and decrease aqueous humor
Why is it a bad idea to abruptly stop taking a BETA blocker
Your sympathetic nervous system is upregulated while taking which could cause a angina and increase risk of sudden death
CNS effects with BETA blockers
- Fatigue
- Depression
- sleep disturbances
No clear correlation
Propranolol clinical use
Treats hypertension, Angina pectoris , cardiac arrhythmias, myocardial infraction, and pheochromocytoma, migrane, tremor
propranolol adverse effects
cardiovascular, bradycardia, hypotension, heart failure, fatigue ,withdrawal symptoms, bronchospasm,
timolol Clinical use
Treatment of glaucomal, which decreases aqueous humor concentration
(Timmy got sum glasses)
metoprolol clinical use
Hypertension,Cardiovascular, angima, congestive heart
failure C.A.C.H
(slows heart)