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Intentional Hydroxychloroquine Overdose Treated with High-Dose Diazepam: an Increasing Concern in the COVID-19 Pandemic

Author(s)
Chai, Peter R.; Ferro, E. G.; Kirshenbaum, J. M.; Hayes, B. D.; Culbreth, S. E.; Boyer, E. W.; Erickson, T. B.; ... Show more Show less
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Abstract
Abstract Introduction Recent attention on the possible use of hydroxychloroquine and chloroquine to treat COVID-19 disease has potentially triggered a number of overdoses from hydroxychloroquine. Toxicity from hydroxychloroquine manifests with cardiac conduction abnormalities, seizure activity, and muscle weakness. Recognizing this toxidrome and unique management of this toxicity is important in the COVID-19 pandemic. Case Report A 27-year-old man with a history of rheumatoid arthritis presented to the emergency department 7 hours after an intentional overdose of hydroxychloroquine. Initial presentation demonstrated proximal muscle weakness. The patient was found to have a QRS complex of 134 ms and QTc of 710 ms. He was treated with early orotracheal intubation and intravenous diazepam boluses. Due to difficulties formulating continuous diazepam infusions, we opted to utilize an intermitted intravenous bolus strategy that achieved similar effects that a continuous infusion would. The patient recovered without residual side effects. Discussion Hydroxychloroquine toxicity is rare but projected to increase in frequency given its selection as a potential modality to treat COVID-19 disease. It is important for clinicians to recognize the unique effects of hydroxychloroquine poisoning and initiate appropriate emergency maneuvers to improve the outcomes in these patients.
Date issued
2020-06
URI
https://hdl.handle.net/1721.1/128026
Department
Koch Institute for Integrative Cancer Research at MIT
Journal
Journal of Medical Toxicology
Publisher
Springer Science and Business Media LLC
Citation
Chai, Peter R. et al. "Intentional Hydroxychloroquine Overdose Treated with High-Dose Diazepam: an Increasing Concern in the COVID-19 Pandemic." Journal of Medical Toxicology 16, 3 (June 2020): 314–320 © 2020 Springer Nature
Version: Author's final manuscript
ISSN
1556-9039
1937-6995

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