11 results
Antiarrhythmic Medications - Vaughan Williams Classification - Summary Table
Class I agents - Sodium Channel Blockers⠀
Class II
Antiarrhythmic Medications ... agents - Sodium Channel ... agents - Calcium Channels ... EricsMedicalLectures/ #Antiarrhythmic ... Summary #Table #pharmacology
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
Antiarrhythmics ... 1 - Sodium Channel ... accpcardprn #Antiarrhythmics ... Vaughan #Williams #Pharmacology ... #pathophysiology
Antiarrhythmics - Sodium Channel Blockers
Subclasses, Mechanisms, Indications, Side Effects
la - Quinidine, Procainamide
lb - Lidocaine, Mexiletine
Ic -
Antiarrhythmics ... - Sodium Channel ... #Sodium #Channel ... #Blockers #ClassI ... Na #cardiology #pharmacology
Antiarrhythmics - Vaughan Williams Classification
Class I (Ia, Ib, Ic) - Na+ Channel Blockade
 • Slows depolarization
Antiarrhythmics ... Ib, Ic) - Na+ Channel ... III - K+ Channel ... EricsMedicalLectures/ #Antiarrhythmics ... #cardiology #pharmacology
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
Antiarrhythmics ... Pharmacology Summary ... @accpcardprn #Antiarrhythmics ... #Pharmacology # ... #pathophysiology
Drugs affecting the cardiac action potential. The sharp rise in voltage ("0") corresponds to the influx
to the sodium-channel ... voltage-sensitive calcium channels ... #Pathophys #Pharmacology ... #Cardiology #Antiarrhythmics ... #Classes #Effect
Class I Antiarrhythmics and their Key Pharmacologic Properties

Class IA = Quinidine, Procainamide, Disopyramide ("Quarter PounDer")
Class IB
Class I Antiarrhythmics ... and their Key Pharmacologic ... Block fast Na+ channels ... #Class1 #Antiarrhythmics ... #Pharmacology #
Lidocaine HCl - sodium channel blocker. Local anesthetic and class 1B antiarrhythmic. Originally developed in 1943
Lidocaine HCl - sodium channel ... anesthetic and class ... 1B antiarrhythmic ... #Pharmacology #Lidocaine
Class III Antiarrhythmics - Potassium Channel Blockers - Indications and Side Effects
Amiodarone
 • Suppression of VT
Class III Antiarrhythmics ... - Potassium Channel ... EricsMedicalLectures/ #ClassIII #Antiarrhythmics ... #Potassium #Channel ... #Blockers #pharmacology
Clinically Significant Cardiovascular Drug-Drug Interactions With OTC Supplements and Herbal Products
Angiotensin-Converting Enzyme Inhibitors (ACEIs)
 • Night-blooming
tachycardia Calcium Channel ... vera, Licorice - Causes ... potential arrhythmias Class ... I Antiarrhythmic ... supplementals #herbal #pharmacology