Drug Interactions between Corlanor and Idamycin PFS

GENERALLY AVOID: Due to its bradycardic effects, the risk of QT prolongation and torsade de pointes arrhythmia may be increased when ivabradine is used with drugs that prolong the QT interval. In clinical studies in adult patients, the rate of bradycardia was 6.0% versus 1.3% per patient-year for ivabradine compared to placebo. Asymptomatic and symptomatic bradycardia were observed in 6.8% and 4.1% of the pediatric patients treated with ivabradine compared to 2.4% and 0% in the placebo treatment group, respectively. At recommended dosages of ivabradine, heart rate reduction is approximately 10 beats per minute at rest and during exercise. In general, the risk of an individual agent or a combination of agents causing ventricular arrhythmia in association with QT prolongation is largely unpredictable but may be increased by certain underlying risk factors such as congenital long QT syndrome, cardiac disease, and electrolyte disturbances (e.g., hypokalemia, hypomagnesemia). In addition, the extent of drug-induced QT prolongation is dependent on the particular drug(s) involved and dosage(s) of the drug(s).

MANAGEMENT: Coadministration of ivabradine with drugs that can prolong the QT interval should generally be avoided. Caution and cardiac monitoring are recommended if concomitant use is required. Patients should be advised to seek prompt medical attention if they experience symptoms that could indicate the occurrence of torsade de pointes such as dizziness, lightheadedness, fainting, palpitation, irregular heart rhythm, shortness of breath, or syncope.

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