Konorev Adrenergic Antagonist Drugs Flashcards
Which drugs are non-selective alpha antagonists?
Phentolamine, Phenoxybenzamine
Which drugs are alpha1 selective antagonists? What is their common suffix?
Prazosin, Terazosin, Tamsulosin, Doxazosin, Alfuzosin, Silodosin; -osin
What are the major cardiovascular effects of alpha antagonistic drugs?
Decreased PVR and BP, postural HTN, reflex tachycardia
What are the major genitourinary effects of alpha antagonistic drugs?
SM relaxation in prostate, decreases urine flow resistance
What are the major eye effects of alpha antagonistic drugs?
Pupillary dilator m. relaxation (miosis)
What are the common clinical uses of alpha antagonists?
Pheochromocytoma, Chronic HTN, BPH, ED
Which two alpha antagonists have the greatest selectivity for alpha1A receptors which are mostly found on the prostate?
Tamsulosin, Silodosin
Which drugs are mixed adrenergic antagonists?
Labetalol, Carvedilol
Which drugs are non-selective ß blockers/antagonists?
Propranolol, Pindolol, Nadolol, Penbutolol
Which drugs are ß1 selective ß blockers/antagonists?
Metoprolol, Betaxolol, Acebutolol, Atenolol
What is the common suffix of all ß blockers?
-olol
Which ß blockers are full antagonists?
Atenolol, Nadolol, Propranolol, Betaxolol
Which ß blockers are partial agonists?
Acebutolol, Labetalol, Penbutolol, Pindolol
Which ß blockers are inverse agonists?
Carvedilol, Metoprolol
What are the major heart effects of ß-blockers?
Negative inotropic/chronotropic effects
What are the major blood vessel effects of ß-blockers?
Initial rise in PVR followed by decrease in PVR with chronic use
What are the major RAAS effects of ß-blockers?
Inhibition of renin release
What are the major respiratory effects of ß-blockers?
Increased airway resistance
What are the major eye effects of ß-blockers?
Reduce aqueous humor production (reduce intraocular pressure)
What are the major metabolic effects of ß-blockers?
Inhibit lipolysis, increase VLDL, decrease HDL, inhibit gluconeogenesis/glycogenolysis
What are the major clinical uses for ß-blockers?
Angina pectoris, HTN, MI, Cardiac arrhythmias, Heart failure, Glaucoma, Hyperthyroidism