CV2 Pharm Table Flashcards
what is the Drug class of Procainamide
Class 1A-arrythmic Na Channel blockade
what are the indications of Procainamide
Life threatening ventricular arrhythmias
What are the MOA of Procainamide
Decreases myocardial excitability and conduction velocity and may depress myocardial contractility, by increasing the electrical stimulation threshold of ventricle, His-Purkinje system and through direct cardiac effects (UtD)
Drug class of Lidocaine
Class 1B arrythmic Na Channel blockade
Indications of Lidocaine
Suppression of existing ventricular arrhythmias
MOA of Lidocaine
blocks both the initiation and conduction of nerve impulses by decreasing the neuronal membrane’s permeability to sodium ions, suppresses automaticity of conduction tissue, by increasing electrical stimulation threshold of ventricle, His-Purkinje system, and spontaneous depolarization of the ventricles during diastole (UtD)
Drug class of Flecainide
Class 1C Na Channel
indications of Flecainide
ventricular arrhythmias (prevention); paroxsysmal SVT (prevention); paroxsysmal a fib/flutter
MOA of Flecainide
slows conduction in cardiac tissue by altering transport of ions across cell membranes; causes slight prolongation of refractory periods; increases electrical stimulation threshold of ventricle, His-Purkinje system (UtD)
Drug class of Propranolol
Class 2 Beta Blockers Nonselective (B1; B2) -or- Sympatholytics: Peripheral Adrenergic ‘R’ Blockers – Beta Blocker
Indications of Propranolol
Angina, HTN, tachyarrhythmias, essential tremor, migraine Px, anxiety
MOA of Propranolol
Adrenergic B1 and B2 receptor inhibitor; reduction in myocardial oxygen demand, HR, cardiac contractility, BP
Drug class of Metoprolol Tartrate
[Lopressor]
Metoprolol Succinate
[Toprol XL]
Beta Blockers Cardioselective (B1) Class II -or- Sympatholytics: Peripheral Adrenergic ‘R’ Blockers – Beta Blockers
Indications of Metoprolol Tartrate
[Lopressor]
Metoprolol Succinate
[Toprol XL]
Angina, HTN, hemodynamically stable MI
MOA of Metoprolol Tartrate
[Lopressor]
Metoprolol Succinate
[Toprol XL]
Selective B1 adrenergic receptor inhibitor
Drug class of Atenolol
Beta Blockers Cardioselective without ISA (B1) Class II -or- Sympatholytics: Peripheral Adrenergic ‘R’ Blockers – Beta Blockers
Atenolol indications
- Angina
- HTN
- hemodynamically stable post-MI supraventricular tachyarrhythmias (catecholamine induced, dig toxicity)
MOA of Atenolol
B1 adrenergic receptor inhibitor
Drug class of Amiodarone
Class 3
Repolarization delay
indications of Amiodarone (5)
- life-threatening recurrent VF
- unresponsive or unstable VT refractory to other anti-arrhythmics
- Off-label for AF
- PSVT
- adjunct to ICD to suppress ventricular tachyarrhythmias in otherwise optimally treated patients with heart failure
MOA of Amiodarone
inhibits adrenergic stimulation (alpha and beta) affecting Na, K, and Ca channels; prolongs action potential and refractory period in cardiac tissues; decr AV conduction and sinus node function
Drug class of Verapamil and Diltiazem
Class 4
Calcium channel Blockers
Nondihydropyridine
Indications of Verapamil and Diltiazem (5)
Angina, HTN, PSVT, A fib, A flutter
MOA of Verapamil and Diltiazem
Dilate coronary arteries & decrease myocardial oxygen demands
Drug class of Adenosine
Naturally occuring nucleoside
Indication of Adenosine
new arrhythmias, chest pain, headache, flushing, dyspnea, bronchospasm
MOA of Adenosine
In PSVT: Slows conduction time through the AV node, interrupting the re-entry pathways through the AV node, restoring normal sinus rhythm; In Stress testing: causes coronary vasodilation and increases blood flow in normal coronary arteries with little to no increase in stenotic coronary arteries
Drug class of Digoxin
Other:
Cardiac Glycoside
indications of Digoxin
- Mild to moderate HF;
2. A fib rate control
MOA of Digoxin
Inhibits Na/K ATPase pump in myocardial cells promoting influx Ca++ leading to increased contractility; also direct suppressor of AV node which decr ventricular rate
Drug class of Mg SO4 (IV)
electrolyte
indications of Drug class of Mg SO4 (IV)
Digitalis induced arrhythmias with low serum Mg; low Mg induced arrhythmias (VF, VT); OFF-LABEL: torsades de pointes; (Severe exacerbation asthma in children)
MOA of Mg SO4 (IV)
unknown
Drug class of Prazosin
alpha-blockers
Indications of Prazosin
hypertension;
off-label for PTSD, Raynaud’s Phenomenon
MOA of Prazosin
selective alpha 1 blocker which relaxes smooth muscle in arteries and veins and the prostate
Drug class of Carvedilol
B1, B2, A1 Blockers
indications of Carvedilol
angina (off-label),
HTN,
stable HF,
stable post-MI