Pharm 1 Liner- Cardiovascular Flashcards
3 side effects of ACE inhibitors
Dry cough, hyperkalemia, angioedema
Inactivated by angiotensin converting enzyme, contributes to dry cough and angioedema
Bradykinin
ACE inhibitor is drug of choice for
Hypertension with diabetic nephropathy because it can decrease the intraglomerular pressure and slow GBM thickening
Ace inhibitors are contraindicated in
Pregnancy, hyperkalemia, bilateral renal artery stenosis
Mechanism of action of losartan and valsartan
Block angiotensin II type 1 receptor
Side effect associated with ACE inhibitors but not angiotensin receptor blockers
Dry cough
Calcium channel blockers with predominant effect on arteriole dilation
Nifedipine, amlodipine, nimodipine (dihydropyridines)
Calcium channel blockers with predominant effect on heart
Verapamil and diltiazem
Side effects of calcium channel blockers
Constipation, peripheral edema, cardiac depression, AV block, gingival hyperplasia
Alpha 2 agonist used in pregnant women with hypertension
Methyldopa
Side effects of methyldopa
Positive Coombs hemolytic anemia, SLE-like syndrome, CNS depression
Methyldopa is contraindicated in
Geriatrics due to its CNS (depression) effects
Side effect of clonidine
Rebound hypertension, bradycardia, sedation, dry mouth
Direct vasodilator of arteriolar smooth muscle by increasing cGMP and inhibit IP3-induced calcium release from the SR
Hydralazine
Side effect of hydralazine
Lupus-like syndrome
Arterial vasodilator that works by opening K channels
Minoxidil
Side effect of minoxidil
Hyertrichosis
MAO and effect of nitric oxide
Increase NO leads to increased cGMP which leads to vascular smooth muscle relaxation
IV nitrate used in hypertensive crisis
Nitroprusside
What does nitroprusside dilate
Veins and arteries
Side effect of nitroprusside
Cyanide poisoning
Mechanism of action of sildenafil
Inhibits phosphodiesterase 5, enhancing effects of nitric oxide, activated increase in cGMP
Drugs used in management of exertional angina
Nitrates, calcium channel blockers, beta blockers
Aspirin reduces mortality in unstable angina by
Inhibiting platelet aggregation
Mechanism of action of organic nitrates
Requires enzymatic release of NO, relaxes vascular smooth muscle of veins
Nitrate free intervals are needed due to
Pharmacological tolerance
Side effects of nitrates
Reflex tachycardia, hypotension, flushing, throbbing headache due to meningeal artery dilation
Indication for digoxin
Atrial fibrillation and CHF
Digoxin toxicity can be precipitated by
Hypokalemia
PDE3 inhibitors indicated for acute CHF; long term use is associated with increased mortality
Amrinone and milrinone
Side effect of amrinone and milrinone
Thrombocytopenia
Agent used in acutely decompensated CHF resembling natriuretic peptide
Nesiritide
Mechanism of action of class 1 antiarrythmics
Sodium channel blockers
Mechanism of action of class 2 antiarrythmics
Beta blockers
Mechanism of action of class 3 antiarrthmics
Potassium channel blockers
Mechanism of action of class 4 antiarrythmics
Calcium channel blockers
Limiting side effect of class 1a and III antiarrythmics
Prolongs QT interval
Most common side effects of quinidine that limits its use
Cinchonism