Antiarrhytmic Drugs Flashcards
Class 1
Sodium Channel Blockers
Local anesthetic activity
Act on Phase 0
Class 2
Beta Adrenergic Blockers
Class 3
Potassium Channel Blockers
Class 4
Calcium Channel Blockers
Class 1a
Prolongs AP
Class 1b
Shortens AP
Significant effects on ischemic tissues
Class 1c
No effect on AP
Class 1A Antiarrhythmics
I Am the Queen that Proclaimed the Diss on the Pyramid
Procainamide
Disopyramide
Quinidine
Atrial and Ventricular Antiarrhythmics
Class 1A
Class 1A drug with antimalarial effect
Quinidine
Class 1A, Antiarrhythmics , Lupus like syndrome
Procainamide
Class 1A, Marked antimuscarinic effects
Disopyramide
Class 1A, Torsades, Cinchonism (Headache, Vertigo Tinnitus)
Quinidine
Treatment for Class 1A overdose
Sodium Lactate
DOC Ventricular Arrhythmias
Digoxin induced arrhythmias
Best for Post MI
Class 1B Antiarrhytmics
Class 1B Antiarrhythmics, Agranulocytosis
Tocamide
Least cardiotoxic among conventional Antiarrhythmics
Lidocaine
Class 1B Antiarrhythmics Teratogenic
Phenytoin
1B Drugs
I Buy Mexican Tacos with Lids
Mexiletine
Tocainide
Lidocaine
1C Antiarrhythmics
Selective
For refractory arrhythmias
Contraindicated in POST MI
1C Antiarrhythmics
Antiarrhythmics
I C MORe FLECked ENCAsed PROPs
Reduction of cAMP
Act on Phase 4
Prolonged PR
Post MI Prophylaxis
Class 2 Antiarrhythmics
Non Selective B Blockers
Propanolol