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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A drug used for ventricular arrhythmias caused by digoxin?
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The correct answer is  Ventricular arrhythmias caused by digoxin are best treated with lidocaine, followed by phenytoin-class 1 antiarhhmatics REF Essentials of Medical Pharmacology KD Tripathi 8th ed.