What are the classes of antiarrhythmic drugs give examples?
What are the classes of antiarrhythmic drugs give examples?
Overview
| Classes of antiarrhythmic drugs | |
|---|---|
| Class | Examples |
| Class IB antiarrhythmics | Lidocaine Mexiletine Phenytoin |
| Class IC antiarrhythmics | Flecainide Propafenone |
| Class II antiarrhythmic drugs | Metoprolol Esmolol (short acting) Propranolol Atenolol Timolol Carvedilol Sotalol |
What is Vaughan Williams classification of antiarrhythmic drugs?
Vaughan-Williams Classification of Antiarrhythmic Drugs
| Condition | Drug |
|---|---|
| Sinus tachycardia | Class II, IV |
| Atrial fibrillation/flutter | Class IA, IC, II, III, IV digitalis |
| Paroxysmal supraventricular tachycardia | Class IA, IC, II, III, IV adenosine |
| AV block | atropine |
How many classes of antiarrhythmic drugs are there?
Most antiarrhythmic drugs are grouped into 4 main classes (Vaughan Williams classification) based on their dominant cellular electrophysiologic effect (see table Antiarrhythmic Drugs (Vaughan Williams Classification) Treatment is directed at causes.
What are Class 1C drugs?
Background. Class 1C antiarrhythmic drugs (AADs) are effective first‐line agents for atrial fibrillation (AF) treatment. However, these agents commonly are avoided in patients with known coronary artery disease (CAD), due to known increased risk in the postmyocardial infarction population.
What drug class is digoxin?
Digoxin belongs to the class of medicines called digitalis glycosides. It is used to improve the strength and efficiency of the heart, or to control the rate and rhythm of the heartbeat. This leads to better blood circulation and reduced swelling of the hands and ankles in patients with heart problems.
Which drug is considered a class 1a antiarrhythmic drug?
Ibutilide is classified as a class III drug because it delays repolarization. It blocks Kr channels and causes the opening of Ca2+ channels, which promote Na+ influx through slow channels, extending phase 2 of the action potential. The drug is administered intravenously for atrial fibrillation and atrial flutter.
What is a Class 4 drug?
SCHEDULES OR CLASSES OF DRUGS. SCHEDULE 4 (CLASS 4) DRUGS have an even lower abuse potential than Schedule 3 Drugs, accepted medical use, and limited addiction potential. These include most of the anti-anxiety medications like the numerous Benzodiazepines, Sedatives, sleeping agents, and the mildest of the opiod type medications like Darvon…
Are antiarrhythmic drugs safe?
With a clear understanding of the maternal hemodynamic changes associated with pregnancy, and the appropriate antiarrhythmic therapies available, almost all such cases can be treated successfully. Although no drug is completely safe, most are well tolerated and can be given with relatively low risk.
What is antiarrhythmic drug?
Antiarrhythmics are drugs that are used to treat abnormal heart rhythms resulting from irregular electrical activity of the heart.
