What the FDA labels say about taking them together
Rucaparib camsylate and warfarin
Rucaparib camsylate's FDA label of December 31, 2025 names warfarin in its drug interactions section; the warfarin label PlainMeds reads does not name rucaparib camsylate. The rucaparib camsylate label: “If concomitant administration with warfarin (a CYP2C9 substrate) cannot be avoided, consider increasing the frequency of international normalized ratio (INR) monitoring.”
Check it at the source: the rucaparib camsylate FDA label on DailyMed (effective December 31, 2025, pharmaand GmbH); the warfarin FDA label on DailyMed (effective May 29, 2026, Amneal Pharmaceuticals LLC).
What does the rucaparib camsylate label say about warfarin?
Rucaparib camsylate label, drug interactionsIf concomitant administration with warfarin (a CYP2C9 substrate) cannot be avoided, consider increasing the frequency of international normalized ratio (INR) monitoring.
Source: FDA drug label (Rubraca), pharmaand GmbH, effective December 31, 2025 (SPL set 0295d202-1cfe-7659-e063-6294a90a476e), via openFDA; the full label on DailyMed
What does the warfarin label say about rucaparib camsylate?
Warfarin's label (effective May 29, 2026) does not name rucaparib camsylate 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
| Rucaparib camsylate | Warfarin | |
|---|---|---|
| Labeled for | Prostate cancer | Blood clots (DVT and PE), Atrial fibrillation |
| Boxed warning | No | Yes |
| Pharmacy cost (NADAC) | n/a | $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