Can mirtazapine increase the risk of QT prolongation?

Question from a Member: I wrote mirtazapine for a cardiac patient on amiodarone. The pharmacist has objected because the interaction between the two can cause QTc prolongation (moderate risk). My EMR, Medscape, and Epocrates don’t show this interaction. She quoted ‘Micromedex.’ Are you aware of this? When evaluating the risk of adverse effects like QTc…