Antiarrhythmic Medications


4.6 out of 5 (29 Reviews)



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Expiration Date

31 Dec 2023

Last Reviewed

1 Jan 2021

Estimated Time To Finish

90 Minutes

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Activity Description

The antiarrhythmic medications have typically been categorized according to the Vaughan-Williams (VW) classification system. The system classifies the medications according to the primary mechanism of action (although several agents retain properties from multiple classes). The VW classification is traditionally broken down into four main categories, with some references adding a fifth. Revised Vaughan-Williams (VW) classification provides insight into the newly developed antiarrhythmic drugs. This activity covers the antiarrhythmic medications and reviews the indications, contraindications, activity, adverse drug reactions, toxicity, management, monitoring parameters, and significant interactions as needed by the interprofessional health team to manage conditions for which these agents are indicated.

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Target Audience

This activity has been designed to meet the educational needs of physicians.

Learning Objectives

At the conclusion of this activity, the learner will be better able to:

  • Identify the main classes of antiarrhythmic medications, and give an example from each.
  • Outline the indications for each class of antiarrhythmic drugs.
  • Summarize the general mechanism of action of antiarrhythmic medications.
  • Describe interprofessional team strategies for improving care coordination and communication to advance appropriate clinical outcomes with antiarrhythmic therapy to treat cardiac arrhythmias and drive the optimal outcomes.

Author(s) / Contributors Disclosure of Conflicts of Interest

Each author, editor, faculty and planning committee member have completed a disclosure form indicating that neither they nor their spouse/partner has a financial interest/arrangement or affiliation that could be perceived as a real or apparent conflict of interest related to the content of this activity.

COMMERCIAL SUPPORT: This activity has received NO commercial support.

Continuing Education Accreditation Information

This activity has been planned and implemented in accordance with the accreditation requirements and policies of the Accreditation Council for Continuing Medical Education (ACCME) through the joint providership of the Quillen College of Medicine, East Tennessee State University, and StatPearls, LLC. The Quillen College of Medicine, East Tennessee State University is accredited by the ACCME to provide continuing medical education for physicians.

Quillen College of Medicine, East Tennessee State University designates this activity for a maximum of 1.50 AMA PRA Category 1 CreditsTM. Physicians should only claim credit commensurate with the extent of their participation in the activity.

This activity is reported to the following Maintenance of Certification (MOC) boards:
American Board of Anesthesiology
  • Cardiac Anesthesia
  • Critical Care Medicine
  • Pediatric Anesthesia
American Board of Internal Medicine
  • Adolescent Medicine
  • Advanced Heart Failure and Transplant Cardiology
  • Cardiovascular Disease
  • Clinical Cardiac Electrophysiology
  • Critical Care Medicine
  • Hospital Medicine
  • Internal Medicine
American Board of Pathology
  • Cardiovascular
  • Chemical Pathology
  • Forensic Pathology
American Board of Pediatrics
  • Adolescent Medicine
  • General Pediatrics
  • Hospital Medicine
  • Pediatric Cardiology
  • Pediatric Critical Care Medicine
  • Pediatric Emergency Medicine

Cancellation Policy: Cancellations must be received in writing and a money-back guarantee is provided if not completely satisfied.

  • StatPearls and ETSU reserve the right to cancel any course due to unforeseen circumstances. StatPearls and ETSU will not be responsible for other expenses incurred by the participant in the unlikely event that the program is canceled.

Equal Opportunity

  • StatPearls and ETSU are Equal Opportunity / Affirmative Action / Equal Access Institutions. 

Medium or Media Used:

  • Computer Requirements:  Internet Access
  • E-mail Address

Instructions for Credit

  1. Register for the activity and create a StatPearls login.     
  2. Review the required accreditation information:  Target audience, learning objectives, and disclosure information.
  3. Complete the entire self-study activity.
  4. Complete the post-test assessments.
  5. Successfully pass the post-test with a minimum score of 100%.
  6. Complete the evaluation survey. 
  7. Obtain a certificate.

StatPearls and ETSU adhere to ACCME Standards regarding commercial support of continuing medical education. It is the policy of StatPearls and ETSU that the faculty and planning committee disclose real or apparent conflicts of interest relating to the topics of this educational activity, that relevant conflict(s) of interest are resolved, and also that authors and editors will disclose any unlabeled/unapproved use of drug(s) or device(s) during their presentation. Detailed disclosure will be made prior to starting the activity.

The information provided at this CME/CE activity is for continuing education purposes only and is not meant to substitute for the independent medical/clinical judgment of a healthcare provider relative to diagnostic and treatment options of a specific patient’s medical condition.

  • If you need help with the system or have a question about content, please contact
  • If you have a question about the ETSU CME providership, please contact


Media Usage Rights

The contributors and editors of StatPearls have attested that all associated media (images and video) have been legally cleared for use with this activity.  All copyrights are reserved.

  • Name: 'Illustration of Antiarrhythmics.jpg' Attribution: Contributed by Amandeep Goyal, MD


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