Dofetilide and Sunitinib interaction
Dofetilide and Sunitinib: the Sunitinib prescribing label describes an interaction that usually calls for monitoring, a dose change, or spacing the doses.
Usually manageable with monitoring or a dose change. Tell your pharmacist you take both.
What the FDA labels say
From the Sunitinib (SUTENT) label · effective 2026-02-20
Monitor patients who are at higher risk of developing QT interval prolongation, including patients with a history of QT interval prolongation, patients who are taking antiarrhythmics, or patients with relevant pre-existing cardiac disease, bradycardia, or electrolyte disturbances.
Drugs that Prolong QT Interval SUTENT is associated with QTc interval prolongation [see Warnings and Precautions (5.3) , Clinical Pharmacology (12.2) ] .
Monitor the QT interval with ECGs more frequently in patients who require treatment with concomitant medications known to prolong the QT interval.
Taking more than these two? Interactions stack. Check your whole list at once; it stays in your browser.
Open in the checkerNot medical advice. Interaction Checker quotes FDA label text and NIH fact sheets. Whether an interaction matters for you depends on doses, timing, kidney and liver function, and other conditions. Confirm with a pharmacist or prescriber.