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Cited by 667

The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.

Torsades de Pointes Occurring in Association With Terfenadine Use

Monahan, Brian P.·1990·JAMA: The Journal of the American Medical Association

Abstract

Torsades de pointes is a form of polymorphic ventricular tachycardia that is associated with prolongation of the QT interval. Although found in many clinical settings, torsades de pointes is most often drug induced. This report describes the first association (exclusive of drug overdose) of symptomatic torsades de pointes occurring with the use of terfenadine in a patient who was taking the recommended prescribed dose of this drug in addition to cefaclor, ketoconazole, and medroxyprogesterone. Measured serum concentrations of terfenadine and its main metabolite showed excessive levels of parent terfenadine and proportionately reduced concentrations of metabolite, suggesting inhibition of terfenadine metabolism. We believe that a drug interaction between terfenadine and ketoconazole resulted in the elevated terfenadine levels in plasma and in the cardiotoxicity previously seen only in cases of terfenadine overdose.

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Crossref · 10.1001/jama.1990.03450210088038

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Metadata

Authors
Monahan, B. P.
Venue
JAMA: The Journal of the American Medical Association
Published
1990-12-05
Volume
264
Issue
21
Pages
2788
ISSN
  • 0002-9955 (ISSN-L)
  • 0098-7484
OpenAlex
W4254462900
Cited by
667
References
1
FWCI
14.68
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Torsades de Pointes Occurring in Association With Terfenadine Use. https://app.cochat.ai/papers/10.1001/jama.1990.03450210088038
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Monahan, B. P. (1990). Torsades de Pointes Occurring in Association With Terfenadine Use. JAMA: The Journal of the American Medical Association. https://doi.org/10.1001/jama.1990.03450210088038

Data sources

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.