Recommend Limiting the Dose of Hydroxyzine to 100 mg/day in Adults
October 2016
Recent warnings and labeling changes will highlight the risk of QT prolongation and torsades with hydroxyzine.
This is concerning...since hydroxyzine isn't used for life-threatening conditions.
Most cases are in patients with QT prolongation risk factors...such as a history of QT prolongation or arrhythmias, electrolyte imbalances, or on other QT-prolonging drugs (haloperidol, methadone, etc).
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