Hypertention II Flashcards
Benazepril Captopril Enalapril Fosinopril Lisinopril Quinapril Ramipril
Ace inhibitors
1FIrst drug of choice for HT
Decrease conversion of AT1 to ATII, decrease aldosterone secretion -> good for diabetic neuropathy ,CAD, MI, dilated cardiomyopathy, cardiac failure,chronic kidney disease !!first drug of choice
-salt must be restricted
a.E.- dry cough, angioedema** switch to ARBs , blacks
- don’t use in bilateral renal stenosis=decreased GFR
No use in pregnancy (use methyl dopa or hydralazine)
-enhance diuretic treatment (a.e. If excess sodium loss- hypotension reactions )
-Reduce after load
Prevent ATII induced remodeling
Aliskiren
Renin inhibitor- decrease increase of renin when on ACE inhibitors or ARBS
Reactive risk , increase cough
Ace inhibitors angioedema
Switch to ARB
Candesartan Irbesartan Losartan** Olmesteran Telmistartan Valsartan
Angiotensin receptor blockers ARBS #1in HT
Competitive inhibitors
Same efficacy
a.E. Low cough , low angioedema, hyperkalemia ,
Not for people with renal stones or pregnant
Do not use ACE inhibitors and ARBs together
Losartan
ARBs
Urosuric so also useful in goUt
Reduce vascular smooth muscle tone
Diuretic -especially thiazides
Calcium channel blockers
Vasodilators ( hydralazine) ( open k channels- minoxidil) , ( liberate NO sodium nitroprusside) ( activating k/atpase channel- diazoxide)
For mild hypertension
Thiazides
For severe hypertension
Loop diuretics
Chlorothiazide
Longer duration of action, Na/cl channel blocker
Thiazide
Lower bp
Ace inhibitor enhances
Efficacy of diuretics
Resistant hypertension
Aldosterone antagonist use
Diuretics
In small dose Can be combined with other drugs Don't give too high or bad very low bp -reduce CV death -increase glucose when combined with b blockers(hypokalemia) -unmask latent diabetes -thiazides
Calcium channel blockers act on
L channel smooth muscles. Used in Angina and HT
A.e. Sa nodal inhibition -Brady cardia or sa node arrest
Don’t use on patients with congestive cardiac failure or sa , av
nodal abnormalities
-good for mono therapy use
Verapamil Diltiazam Nifedipine Isradipine Nicardipine Feiodipine Amlodipine
The dihydropyridines
Calcium channel blockers for angina
Verapamil
Diltiazem
Calcium channel block
Displayed dialate vessels and affects cardiac contraction
-no RACE importance
Good for HT and angina
Not good for cardiac failure - because reduce conduction
–verapamil most used a.e. Constipation
-diltiazem -reduce work of heart
Bradycardia, decrease myocardial contraction,
** give to patients who cannot tolerate beta blockers