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Antiarrhythmic Medications - Vaughan Williams Classification - Summary Table
Class I agents - Sodium Channel Blockers⠀
Class II
- Sodium Channel ... BlockersClass ... Blockers Class ... BlockersClass ... #pharmacology #
Antiarrhythmics - Sodium Channel Blockers
Subclasses, Mechanisms, Indications, Side Effects
la - Quinidine, Procainamide
lb - Lidocaine, Mexiletine
Ic -
Channel Blockers ... #Channel #Blockers ... #ClassI #Na #cardiology ... #pharmacology # ... table #comparison
Medications Used in Hypertensive Emergencies
Vasodilators: Hydralazine, Nitroglycerin, Sodium nitroprusside 
Calcium Channel Blockers: Clevidipine, Nicardipine
ß-Blockers: Esmolol, Labetalol,
Medications Used ... Nitroglycerin, Sodium ... nitroprusside Calcium Channel ... Management #Treatment #Pharmacology ... #Table
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
1 - Sodium Channel ... Blockers: • MOA ... inotropy) ACCP Cardiology ... Vaughan #Williams #Pharmacology ... pathophysiology #cardiology
Antiseizure Drugs 
Sodium Channel Blockers: Carbamazepine, Oxcarbazepine, Eslicarbazepine, Lamotrigine, Lacosamide, Phenytoin, fosphenytoin
Broad Spectrum: Valproate, Levetiracetam, Brivaracetam,
Antiseizure Drugs Sodium ... Channel Blockers ... antiepileptic #medications ... #epilepsy #pharmacology ... #comparison #table
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
Antiarrhythmics Pharmacology ... 1 - Sodium Channel ... inotropy) ACCP Cardiology ... Antiarrhythmics #Pharmacology ... pathophysiology #phases #cardiology
Common sodium channel blockers which cause QRS widening.

Anticonvulsants: 
 - Carbamazepine 
Antidysrhythmics:  
 - Group
Common sodium channel ... blockers which ... widening #ECG #EKG #Pharmacology ... #Medications #Toxicology ... Differential #Drugs #Classes
Class III Antiarrhythmics - Potassium Channel Blockers - Indications and Side Effects
Amiodarone
 • Suppression of VT
Class III Antiarrhythmics ... - Potassium Channel ... Blockers - Indications ... #Blockers #pharmacology ... #cardiology
Clinically Significant Cardiovascular Drug-Drug Interactions With OTC Supplements and Herbal Products
Angiotensin-Converting Enzyme Inhibitors (ACEIs)
 • Night-blooming
tachycardia Calcium Channel ... Blockers (CCBs) ... potential arrhythmias Class ... supplementals #herbal #pharmacology ... #DDI #table #cardiology