Sunitinib/Class IA & III Antiarrhythmics
How the interaction occurs:
Both sunitinib and your heart medicine affect your heart's rhythm.
What might happen:
Taking sunitinib with your heart medicine may affect your heart's rhythm may increase your risk of an irregular heartbeat, which may be life-threatening.
What you should do about this interaction:
Let your healthcare professionals (e.g. doctor or pharmacist) know right away that you are taking these medications together. Let your doctor know right away if you notice an irregular heartbeat or have any dizziness or fainting episodes.Your healthcare professionals may already be aware of this interaction and may be monitoring you for it. Do not start, stop, or change the dosage of any medicine before checking with them first.Reference:1.Sutent (sunitinib malate) US prescribing information. Pfizer Inc. November, 2012.