Avoid Hydroxyzine in Patients at High Risk of QT Prolongation

New Health Canada warnings will raise questions about the risk of QT prolongation with hydroxyzine (Atarax, etc).

We know that hydroxyzine has been used for years for itching due to allergies, anxiety in adults, nausea and vomiting, and as dental premedication.

Since these are seldom life-threatening indications, it's concerning that hydroxyzine may be associated with QT prolongation.

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