Domperidone Prescribing Practices Exposed Patients to Cardiac Risk despite a “Black Box” Warning: A Canadian Tertiary Care Center Study

Background. In 2012, Health Canada released a warning regarding domperidone use, based on associations with life-threatening arrhythmias and death. Objective. This study aimed to compare the appropriateness of domperidone prescribing patterns before the advisory to those afterward. Methods. Two retr...

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Main Authors: Nauzer Forbes, Mohan Cooray, Raed Al-Dabbagh, Yuhong Yuan, Frances Tse, Louis W. C. Liu, Ted Xenodemetropoulos
Format: Article
Language:English
Published: Wiley 2016-01-01
Series:Canadian Journal of Gastroenterology and Hepatology
Online Access:http://dx.doi.org/10.1155/2016/2937678
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author Nauzer Forbes
Mohan Cooray
Raed Al-Dabbagh
Yuhong Yuan
Frances Tse
Louis W. C. Liu
Ted Xenodemetropoulos
author_facet Nauzer Forbes
Mohan Cooray
Raed Al-Dabbagh
Yuhong Yuan
Frances Tse
Louis W. C. Liu
Ted Xenodemetropoulos
author_sort Nauzer Forbes
collection DOAJ
description Background. In 2012, Health Canada released a warning regarding domperidone use, based on associations with life-threatening arrhythmias and death. Objective. This study aimed to compare the appropriateness of domperidone prescribing patterns before the advisory to those afterward. Methods. Two retrospective reviews were conducted for patients prescribed domperidone during quarters in 2005 and 2012. Outcomes included appropriateness of indication, dosing regimens, monitoring of electrolytes, baseline electrocardiogram performance and characteristics, presence of left ventricular dysfunction, and coprescription of QT-prolonging medications. Univariable and multivariable logistic regression analyses were performed. p values < 0.05 were considered significant. Results. 290 and 287 patients were analyzed in 2005 and 2012, respectively. Domperidone initiation in hospital decreased from 2005 to 2012 (71.4% versus 39.4%, p<0.0001) as did prescriptions for nonapproved indications (84.8% versus 58.2%, p<0.0001). In-hospital initiation predicted prescription for nonapproved indications (OR = 7.01, 95% CI 4.52–10.87, p<0.0001). Use of domperidone as the sole GI drug predicted nonapproved indications (OR = 2.51, 95% CI 1.38–4.55, p=0.002). Conclusions. The advisory was associated with more appropriate domperidone initiation and compliance with recommended dosages. Our study suggests the need for increased awareness of the dosing and monitoring of domperidone to ensure patient safety.
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spelling doaj-art-c6d6619f82034b4eb5af97e13400dd042025-02-03T01:32:41ZengWileyCanadian Journal of Gastroenterology and Hepatology2291-27892291-27972016-01-01201610.1155/2016/29376782937678Domperidone Prescribing Practices Exposed Patients to Cardiac Risk despite a “Black Box” Warning: A Canadian Tertiary Care Center StudyNauzer Forbes0Mohan Cooray1Raed Al-Dabbagh2Yuhong Yuan3Frances Tse4Louis W. C. Liu5Ted Xenodemetropoulos6Division of Gastroenterology, McMaster University Department of Medicine, Hamilton, ON, L8S 4K1, CanadaDivision of Gastroenterology, McMaster University Department of Medicine, Hamilton, ON, L8S 4K1, CanadaDivision of Gastroenterology, McMaster University Department of Medicine, Hamilton, ON, L8S 4K1, CanadaFarncombe Family Digestive Research Institute, Hamilton, ON, L8S 4K1, CanadaDivision of Gastroenterology, McMaster University Department of Medicine, Hamilton, ON, L8S 4K1, CanadaDivision of Gastroenterology, University of Toronto Department of Medicine, Toronto, ON, M5T 2S8, CanadaDivision of Gastroenterology, McMaster University Department of Medicine, Hamilton, ON, L8S 4K1, CanadaBackground. In 2012, Health Canada released a warning regarding domperidone use, based on associations with life-threatening arrhythmias and death. Objective. This study aimed to compare the appropriateness of domperidone prescribing patterns before the advisory to those afterward. Methods. Two retrospective reviews were conducted for patients prescribed domperidone during quarters in 2005 and 2012. Outcomes included appropriateness of indication, dosing regimens, monitoring of electrolytes, baseline electrocardiogram performance and characteristics, presence of left ventricular dysfunction, and coprescription of QT-prolonging medications. Univariable and multivariable logistic regression analyses were performed. p values < 0.05 were considered significant. Results. 290 and 287 patients were analyzed in 2005 and 2012, respectively. Domperidone initiation in hospital decreased from 2005 to 2012 (71.4% versus 39.4%, p<0.0001) as did prescriptions for nonapproved indications (84.8% versus 58.2%, p<0.0001). In-hospital initiation predicted prescription for nonapproved indications (OR = 7.01, 95% CI 4.52–10.87, p<0.0001). Use of domperidone as the sole GI drug predicted nonapproved indications (OR = 2.51, 95% CI 1.38–4.55, p=0.002). Conclusions. The advisory was associated with more appropriate domperidone initiation and compliance with recommended dosages. Our study suggests the need for increased awareness of the dosing and monitoring of domperidone to ensure patient safety.http://dx.doi.org/10.1155/2016/2937678
spellingShingle Nauzer Forbes
Mohan Cooray
Raed Al-Dabbagh
Yuhong Yuan
Frances Tse
Louis W. C. Liu
Ted Xenodemetropoulos
Domperidone Prescribing Practices Exposed Patients to Cardiac Risk despite a “Black Box” Warning: A Canadian Tertiary Care Center Study
Canadian Journal of Gastroenterology and Hepatology
title Domperidone Prescribing Practices Exposed Patients to Cardiac Risk despite a “Black Box” Warning: A Canadian Tertiary Care Center Study
title_full Domperidone Prescribing Practices Exposed Patients to Cardiac Risk despite a “Black Box” Warning: A Canadian Tertiary Care Center Study
title_fullStr Domperidone Prescribing Practices Exposed Patients to Cardiac Risk despite a “Black Box” Warning: A Canadian Tertiary Care Center Study
title_full_unstemmed Domperidone Prescribing Practices Exposed Patients to Cardiac Risk despite a “Black Box” Warning: A Canadian Tertiary Care Center Study
title_short Domperidone Prescribing Practices Exposed Patients to Cardiac Risk despite a “Black Box” Warning: A Canadian Tertiary Care Center Study
title_sort domperidone prescribing practices exposed patients to cardiac risk despite a black box warning a canadian tertiary care center study
url http://dx.doi.org/10.1155/2016/2937678
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