11 results
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
Antiarrhythmic Drugs

CLASS IA
 • Procainamide, Quinidine, Disopyramide
CLASS 1B
 • Lidocaine, Mexiletine
CLASS 2
 • Propranolol, Esmolol
CLASS 4
Antiarrhythmic Drugs ... CLASS IA • ... Disopyramide CLASS ... , Mexiletine CLASS ... Potassium #Antiarrhythmic
Antiarrhythmic Medications - Vaughan Williams Classification - Summary Table
Class I agents - Sodium Channel Blockers⠀
Class II
Antiarrhythmic Medications ... ⠀ Class II agents ... Blockers Class ... BlockersClass ... EricsMedicalLectures/ #Antiarrhythmic
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
Antiarrhythmics ... : CLASS 1 - Sodium ... duration: - CLASS ... accpcardprn #Antiarrhythmics ... #Classes #pathophysiology
Lidocaine HCl - sodium channel blocker. Local anesthetic and class 1B antiarrhythmic. Originally developed in 1943
Lidocaine HCl - ... sodium channel blocker ... anesthetic and class ... 1B antiarrhythmic ... #Pharmacology #Lidocaine
Class I Antiarrhythmics and their Key Pharmacologic Properties

Class IA = Quinidine, Procainamide, Disopyramide ("Quarter PounDer")
Class IB
Class I Antiarrhythmics ... Properties Class ... Quarter PounDer") Class ... Mayo, Pickle") Class ... #Class1 #Antiarrhythmics
Antiarrhythmics - Vaughan Williams Classification
Class I (Ia, Ib, Ic) - Na+ Channel Blockade
 • Slows depolarization
Antiarrhythmics ... Class I (Ia, Ib ... , Ic) - Na+ Channel ... Widens QRS complex Class ... #Classes #cardiology
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
Antiarrhythmics ... : CLASS 1 - Sodium ... duration - CLASS ... @accpcardprn #Antiarrhythmics ... Classes #pathophysiology
Drugs affecting the cardiac action potential. The sharp rise in voltage ("0") corresponds to the influx
the influx of sodium ... correspond to the sodium-channel ... #Pathophys #Pharmacology ... #Cardiology #Antiarrhythmics ... #Classes #Effect
Class III Antiarrhythmics - Potassium Channel Blockers - Indications and Side Effects
Amiodarone
 • Suppression of VT
Class III Antiarrhythmics ... - Potassium Channel ... #Antiarrhythmics ... #Blockers #pharmacology ... #cardiology