Antiarrhythmic drugs for Tachy- and Bradyarrhythmias Flashcards Preview

Pharm exam 2 > Antiarrhythmic drugs for Tachy- and Bradyarrhythmias > Flashcards

Flashcards in Antiarrhythmic drugs for Tachy- and Bradyarrhythmias Deck (23):
1

Class IA

Prolongs action potential
Quinidine
Procainamide
Disopyramide

2

Class IB

Shortens action potential
Lidocaine
Phenytoin
Tocainide
Mexiletine
Aprinidine

3

Class IC

No effect on action potential
Flecainide
Encainide
Lorcainide

4

Class II

Beta blockers
Propanolol
Timolol
Pinololol
Oxyprenolol
Alprenolol
Atenolol
Esmolol
Metoprolol

5

Class III

Potassium channel blockers
Bretylium
Amiodarone
Sotalol (nonselective Beta blocker)

6

Class IV

Calcium channel blockers
Verapamil
Diltiazem

7

Therapeutic uses of Quinidine

Ventricular arrhythmias
Atrial fibrillation in horses (drug of choice), cattle, and large breed dogs

8

Therapeutic use of Procainamide

More effective for ventricular arrhythmias than atrial arrhythmias

9

Therapeutic uses of Lidocaine

The intravenous drug of choice for ventricular arrhythmias due to general anesthetics, surgery, ischemia, and trauma
Digitalis-induced arrhythmias

10

Therapeutic uses of Phenytoin

Digitalis-induced arrhythmias in dogs only

11

Therapeutic uses of Propanolol

Paroxysmal supraventricular tachycardia
Digitalis-induced tachyarrhythmias
Arrhythmias due to inhalation anesthesia

12

Therapeutic use of Bretylium

Refractory and recurrent tachyarrhythmias

13

Therapeutic uses of Verapamil and Diltiazem

Supraventricular tachyarrhythmias
Myocardial hypertropy

14

Supraventricular tachyarrhythmias in dogs
-Atrial tachycardia treatment

Digoxin
Procainamide, propanolol
Quinidine, phenytoin

15

Supraventricular tachyarrhythmias in dogs
-Atrial flutter

Digoxin
Quinidine, procainamide, propanolol

16

Supraventricular tachyarrhythmias in dogs
-Atrial fibrillation

Digoxin
Propanolol
Quinidine, procainamide

17

Ventricular tachyarrhythmias
-Ventricular premature complexes

Quinidine, procainamide, lidocaine
Phenytonin
Propranolol

18

Ventricular tachyarrhythmias
-Ventricular tachycardia

Procainamide, lidocain
Quinidine, phenytonin
Propranolol

19

Treatment of tachyarrhythmias in cats

Beta-blockers
The drugs of choice for both supraventricular and ventricular tachyarrhythmias

20

Antiarrhythimc drugs for bradyarrhythmias

Atropine
Isoproterenol
Epinephrine

21

Treatment of bradyarrhythmias
-Sinus bradycardia

Atropine
Isoproterenol

22

Treatment of bradyarrhythmias
-Second-degree AV block

Atropine
Isoproterenol
Glucagon

23

Treatment of bradyarrhythmias
-Cardiac asystole (cardiac resuscitation)

Epinephrine