What the FDA labels say about taking them together
Dronedarone and warfarin
Dronedarone's FDA label of May 29, 2025 names warfarin in its drug interactions section; the warfarin label PlainMeds reads does not name dronedarone. The dronedarone label: “Monitor INR after initiating dronedarone in patients taking warfarin.”
Check it at the source: the dronedarone FDA label on DailyMed (effective May 29, 2025, Sanofi-Aventis U.S. LLC); the warfarin FDA label on DailyMed (effective May 29, 2026, Amneal Pharmaceuticals LLC).
What does the dronedarone label say about warfarin?
Dronedarone label, drug interactionsMonitor INR after initiating dronedarone in patients taking warfarin.
Source: FDA drug label (Multaq), Sanofi-Aventis U.S. LLC, effective May 29, 2025 (SPL set 7fa41601-7fb5-4155-8e50-2ae903f0d2d6), via openFDA; the full label on DailyMed
What does the warfarin label say about dronedarone?
Warfarin's label (effective May 29, 2026) does not name dronedarone in these sections. A label lists what its studies and reports found; it is not a complete list.
Source: FDA drug label (Warfarin Sodium), Amneal Pharmaceuticals LLC, effective May 29, 2026 (SPL set 558b7a0d-5490-4c1b-802e-3ab3f1efe760), via openFDA; the full label on DailyMed
These are the labels' own sentences. PlainMeds does not grade interactions; a pharmacist or prescriber can say what they mean for one person's medicines.
Both medicines on the record
| Dronedarone | Warfarin | |
|---|---|---|
| Labeled for | n/a | Blood clots (DVT and PE), Atrial fibrillation |
| Boxed warning | Yes | Yes |
| Pharmacy cost (NADAC) | $13.19 per tablet 400 mg tablet | $0.093 per tablet 2 mg tablet |
| Shortage now | No current entry | No current entry |
Source: FDA NDC Directory, CMS NADAC of October 7, 2026 and the FDA Drug Shortage Database (FDA files October 8, 2026)
What next?
- Check more medicines together
- up to five at once