antihypertensive Flashcards
(36 cards)
Blood Pressures
Normal:
120/80
Prehypertension:
120-139/80-89
stage 1:
140-159/90-99
stage 2:
over 160/over 100
hypertension (HTN):
- Sympathetic over activity
* Overactive renin-angiotensin-aldosterone system
Angiotensin Converting Enzyme (ACE) Inhibitors
-prils
Captopril, Enalapril, Lisinopril
Angiotensin Antagonists (AT1 blockers)
-sartans
Losartan
Calcium channel blockers
-dipines
Verapamil, Diltiazem, Nifedipine
Beta- Adrenergic blockers
-olols
Propranolol, atenolol, bisoprolol, acebutolol, esmolol
alpha1 adrenergic blockers
-zosins
Prazosin, doxazosin
Dopamine D1 agonist
Fenoldopam
Renin Inhibitor
Aliskiren
ACE inhibitors Mechanism
inhibit the conversion of angiotensin I into angiotensin II
find an increase in: angiotensin 1, angiotensinogen, and renin
leading to a fall in BP
Contraindications of ACE Inhibitors
- Pregnancy
* Renal artery stenosis
ACE Inhibitors adverse drug effects
Hypotension
Hyperkalemia
***Dry cough
Angiotensin receptor antagonists
Hypotension
Hyperkalemia
NO DRY COUGH
Do not combine ACE inhibitors or Angiotensin receptor blockers with K+ sparing diuretics
cardiac arrhythmias may occur because of hyperkalemia
L-type blockers
Nifedipine, diltiazem, verapamil
Calcium channel blockers
Verapamil
Diltiazem
Dihydropyridines (ex. nifedipine)
Verapamil
cardiac cells
angina and supraventricular tachyarrhythmias
veraPAMil: Pacemaker Activity Minimized
Diltiazem
cardiac and smooth muscle cells
hypertension
DIltiazem: di = both
nifedipine
vascular smooth muscle cells
angina, hypertension
nifeDIPine: Decrease In Pressure
Amlodipine
very long half-life
Diuretics ↓C. O.
maintained by compensatory mechanism
in chronic use: decrease t.p.r.
Carvedilol
mainly used in heart failure
Labetalol
used in gestational HTN
Pregnancy induced hypertension
drugs used are: Nifedipine, Labetalol, Methyldopa, Hydralazine
( N Lowers Maternal Hypertension)