Antihypertensives Flashcards
List of alpha 1 blockers
“zosin”
prazosin
doxazosin
terazosin
List of non selective beta blockers
propranolol
carvedilol
pindolol
timolol
List of 3rd generation beta blockers (selective)
metoprolol
atenolol
bisprolol
nebivolol
List of ACE inhibitors
"pril" captopril lisinopril enalapril ramipril
List of AR blockers
"sartan" losartan valsartan irbesartan telmisartan candesartan
List of renin inhibitors
aliskerin
List of alpha 2 agonists
clonidine
guanabens
guanfacine
methyldopa
List of direct vasodilators
minoxidil
sodium nitroprusside
diazxide
fenoldopam
List of L-type calcium channel blockers: phenylalkylamine
verapamil
List of L-type calcium channel blockers: benzothiazepine
diltiazem
L-type calcium channel blockers: dihydropyridines
"dipine" amoldipine nifedipine nicardipine nimodipine
alpha1 adrenergic receptor blockers
use: BPH; not for HTN monotherapy
effects: decrease TPR and BP, relax bladder and prostate muscles; increase HDL and lower LDL, beneficial effect on insulin resistance
SE: first dose hypotension with prazosin
Beta blockers with no ISA
effects: decrease HR and contractility and therefore CO, inhibit renin release
use: HTN, additive to diuretics, mortality benefits with bisprolol
labetalol
mixed alpha1 and nonselective B antagonist
use: IV for HTN emergencies (preeclampsia and pheochromocytoma
carvedilol
mixed alpha 1 and nonselective B antagonist
antioxidant: protects membranes from lipid preoccupation, prevents LDL oxidation and decreased LDL uptake in coronary vessels
nebivolol
B1 selective antagonist with NO-mediated vasodilation
antixoidant
Use of 3rd generation B blockers
reduce BP , HR more than other B blockers
NOT first line for HTN
use: CHF (reduce mortality and morbidity)
not associated with changes in lipids and glucose, preferred in metabolic syndrome
bisprolol
B1 blocker
Additional uses of B blockers
CHF, MI, sinus/AV arrhythmias
off label: stage fright, altering memory
timolol
B blocker for open angle glaucoma (reduce production of aqueous humor)
preferred in HTN patents with: MI, ischemic heart disease, CHF, hyperthyroidism and migraines
Side effects of B blockers
cold extremities, bradycardia, bronchospasm, CNS side effects (depression and dreams)
block glycogenolysis and delay recovery from hypoglycemia in T1DM (not seen with 3rd generation or selective B blockers)
increase LDL and reduce HDL, increase TG
WITHDRAWAL syndrome: taper to avoid tachycardia
ACE inhibitors
inhibit angiotensin converting enzyme: inhibits conversion o angiotensin I to angiotensin II
reduces secretion of aldosterone, increase renal blood flow without increase in GFR
dilate arteries and veins, reduce BP, reduce thickening of vessels
*no postural hypotension (baroreceptors intact)
captopril
increase syn. of renal PGs (delays progression of renal dissuasion diabetics)
Effects of angiotensin II
- cardiac and vascular hypertropy
- systemic vasoconstriction
- thirst: increased blood volume
- pituitary: increase ADH
- adrenal cortex: increase aldosterone
- renal sodium and fluid retention