Hydroxychloroquine and Nifekalant added to Known Risk of TdP

October 22, 2019 at 5:20 PM


The class III antiarrhythmic agent, nifekalant, (marketed in Japan) has been added to the Known Risk of Torsades de Pointes (TdP) list because of evidence that its use is associated with TdP.  Also, the antimalarial drug hydroxychloroquine has been moved from the Conditional Risk of TdP list to the Known Risk of TdP list because we have found evidence of TdP, even when used as directed.

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