1201 results
Class I Antiarrhythmics and their Key Pharmacologic Properties

Class IA = Quinidine, Procainamide, Disopyramide ("Quarter PounDer")
Class IB
Class I Antiarrhythmics ... Pickle") Class IC ... in wide QRS on EKG ... prolonged QT on EKG ... ClassI #Class1 #Antiarrhythmics
Antiarrhythmics - Sodium Channel Blockers
Subclasses, Mechanisms, Indications, Side Effects
la - Quinidine, Procainamide
lb - Lidocaine, Mexiletine
Ic -
Antiarrhythmics ... Lidocaine, Mexiletine Ic ... EricsMedicalLectures/ #Antiarrhythmics
Antiarrhythmic Drug Classes 
IA: "Police Department Questions 
IB: Liquored Man 
IC: For Peeing, 
Ill: After Drinking
Antiarrhythmic Drug ... Liquored Man IC ... Lidocaine Mexiletine IC ... /ambcarerx #Antiarrhythmic
Torsades de Pointes 
•Precipitated by drugs that prolong the QT interval 
•Class IA antidysrhythmics (procainamide, quinidine)
quinidine) •Class IC ... Diagnosis #Cardiology #ECG ... #EKG
Antiarrhythmics - Vaughan Williams Classification
Class I (Ia, Ib, Ic) - Na+ Channel Blockade
 • Slows depolarization
Antiarrhythmics ... Class I (Ia, Ib, Ic ... EricsMedicalLectures/ #Antiarrhythmics
Flecainide Toxicity on ECG

70 year old patient with chronic atrial fibrillation on an antiarrhythmic presented with
Flecainide Toxicity on ECG ... fibrillation on an antiarrhythmic ... Flecainide #Toxicity #ECG ... #EKG #Electrocardiogram
Torsades de Pointes
• "Twisting of the pointes" 
• QRS axis swings from positive to negative direction
quridine) Class IC ... Diagnosis #Cardiology #ECG ... #EKG
Textbook progression Of EKG changes in Hyperkalemia. In reality, EKGs are far 
more variable and unpredictable.
progression Of EKG ... In reality, EKGs ... #Progression #EKG ... #ECG #Electrocardiogram
Common sodium channel blockers which cause QRS widening.

Anticonvulsants: 
 - Carbamazepine 
Antidysrhythmics:  
 - Group
- Group IA and IC ... QRS #widening #ECG ... #EKG #Pharmacology
Antiarrhythmic Medication Table

#Antiarrhythmic #Medications #Table #Classification #Classes #Cardiology #Pharmacology
Antiarrhythmic Medication ... Table #Antiarrhythmic