Does Digoxin Interact with Ibutilide Fumarate?
Digoxin and Ibutilide Fumarate have a moderate drug interaction according to U.S. FDA drug labeling data. Supraventricular arrhythmias may mask cardiotoxicity from excessive digoxin levels. Use caution in patients with elevated plasma digoxin levels. The mechanism involves arrhythmias may mask digoxin cardiotoxicity. Patients taking both medications should consult their healthcare provider before starting, stopping, or changing the dosage of either drug. This information is based on official FDA drug labeling sourced from OpenFDA and the NIH National Library of Medicine.
- Severity
- Moderate
- Digoxin Class
- Cardiac Glycoside
- Management
- Monitor for effects
- Data Source
- U.S. FDA via OpenFDA
How This Interaction Works
The interaction between Digoxin and Ibutilide Fumarate occurs because arrhythmias may mask digoxin cardiotoxicity. Clinically, this means supraventricular arrhythmias may mask cardiotoxicity from excessive digoxin levels. use caution in patients with elevated plasma digoxin levels. This is classified as a moderate interaction. While it may not require stopping either medication, your healthcare provider should be aware you are taking both so they can monitor for potential effects and adjust treatment if necessary.
What To Tell Your Doctor or Pharmacist
If you are taking Digoxin and your doctor is considering prescribing Ibutilide Fumarate (or vice versa), make sure to:
- Inform your doctor and pharmacist of all current medications, including over-the-counter drugs and supplements
- Ask whether the benefits of combining these medications outweigh the risks for your specific situation
- Ask what symptoms to watch for that would indicate the interaction is causing problems
- Ask whether any dosage adjustments are needed
- Never stop or change either medication without first consulting your healthcare provider