What the FDA labels say about taking them together
Aspirin and warfarin
Warfarin's FDA label of May 29, 2026 names aspirin in its drug interactions section; the aspirin label PlainMeds reads does not name warfarin.
Check it at the source: the aspirin FDA label on DailyMed (effective September 9, 2025); the warfarin FDA label on DailyMed (effective May 29, 2026, Amneal Pharmaceuticals LLC).
What does the aspirin label say about warfarin?
Aspirin's label (effective September 9, 2025) does not name warfarin in these sections. A label lists what its studies and reports found; it is not a complete list.
Source: FDA drug label (Medique Products Aspirin), Unifirst First Aid Corporation, effective September 9, 2025 (SPL set 9b28fed0-a993-ca72-e053-2995a90ac7fd), via openFDA; the full label on DailyMed
What does the warfarin label say about aspirin?
Warfarin label, drug interactionsDrug Class: Antiplatelet Agents; Specific Drugs: aspirin, cilostazol, clopidogrel, dipyridamole, prasugrel, ticlopidine
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
| Aspirin | Warfarin | |
|---|---|---|
| Labeled for | Pain, Cough and cold, Fever | Blood clots (DVT and PE), Atrial fibrillation |
| Boxed warning | No | Yes |
| Pharmacy cost (NADAC) | $0.0142 per tablet 81 mg tablet | $0.093 per tablet 2 mg tablet |
| Shortage now | A presentation being discontinued | 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