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BESPONSA™ Drug Interactions (inotuzumab ozogamicin)


Drugs That Prolong the QT Interval

Concomitant use of BESPONSA with drugs known to prolong the QT interval or induce Torsades de Pointes may increase the risk of a clinically significant QTc interval prolongation [see Clinical Pharmacology (12.2)]. Discontinue or use alternative concomitant drugs that do not prolong QT/QTc interval while the patient is using BESPONSA. When it is not feasible to avoid concomitant use of drugs known to prolong QT/QTc, obtain ECGs and electrolytes prior to the start of treatment, after initiation of any drug known to prolong QTc, and periodically monitor as clinically indicated during treatment [see Warnings and Precautions (5.5)].

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