Severe Sinus Bradycardia after Initiation of Bupropion Therapy: A Probable Drug-Drug Interaction with Metoprolol
Authors: David L. McCollum1; Jerica L. Greene2; Darren K. McGuire3
Source: Cardiovascular Drugs and Therapy, Volume 18, Number 4, July 2004 , pp. 329-330(2)
Publisher: Springer
Abstract:
Bupropion is an increasingly prescribed agent to aid in smoking cessation. However it has important drug-drug interactions related to the cytochrome P450 system. One of these is its inhibition of the metabolism of the commonly used beta-blocker, metoprolol. The authors describe a case of severe bradycardia related to the addition of bupropion to the medical regimen of a patient on metoprolol.Keywords: metoprolol; bupropion; cytochrome P450; bradycardia
Document Type: Research article
DOI: 10.1023/B:CARD.0000041254.15807.98
Affiliations: 1: Department of Internal Medicine, The University of Texas-Southwestern Medical Center at Dallas; Dallas,Texas 2: Department of Clinical Pharmacy, Dallas VA Medical Center, Dallas, Texas 3: Department of Internal Medicine, The University of Texas-Southwestern Medical Center at Dallas; Dallas,Texas; The Donald W. Reynolds Cardiovascular Clinical Research Center at UT-Southwestern, Dallas, Texas., Email: darren.mcguire@utsouthwestern.

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