What the FDA labels say about taking them together
Moxifloxacin and warfarin
Moxifloxacin's FDA label of March 17, 2026 names warfarin in its drug interactions section; the warfarin label PlainMeds reads does not name moxifloxacin.
Check it at the source: the moxifloxacin FDA label on DailyMed (effective March 17, 2026, Macleods Pharmaceuticals Limited); the warfarin FDA label on DailyMed (effective May 29, 2026, Amneal Pharmaceuticals LLC).
What does the moxifloxacin label say about warfarin?
Moxifloxacin label, drug interactionsTake moxifloxacin tablets at least 4 hours before or 8 hours after these products. ( 2.2 , 7.1 , 12.3 ) Warfarin Anticoagulant effect enhanced.
Moxifloxacin label (Fresenius Kabi USA, LLC, May 6, 2024), drug interactionsDRUG INTERACTIONS Interacting Drug Interaction Warfarin Anticoagulant effect of warfarin may be enhanced.
Source: FDA drug label (Moxifloxacin, NDA205572), Fresenius Kabi USA, LLC, effective May 6, 2024 (SPL set a4e28b09-714b-46e7-b4e6-0163cad78fc5), via openFDA
Source: FDA drug label (Moxifloxacin), Macleods Pharmaceuticals Limited, effective March 17, 2026 (SPL set 182ecd0f-714f-42f0-9b16-fb604cf15786), via openFDA; the full label on DailyMed
What does the warfarin label say about moxifloxacin?
Warfarin's label (effective May 29, 2026) does not name moxifloxacin 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
| Moxifloxacin | Warfarin | |
|---|---|---|
| Labeled for | Bacterial infections | Blood clots (DVT and PE), Atrial fibrillation |
| Boxed warning | Yes | Yes |
| Pharmacy cost (NADAC) | $1.60 per mL 0.5% eye drops | $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