What the FDA labels say about taking them together
Cabazitaxel and ketoconazole
Cabazitaxel's FDA label of October 7, 2025 names ketoconazole in its drug interactions section; the ketoconazole label PlainMeds reads does not name cabazitaxel. The cabazitaxel label: “Strong CYP3A inhibitors may increase plasma concentrations of cabazitaxel.”
Check it at the source: the cabazitaxel FDA label on DailyMed (effective October 7, 2025, Sanofi-Aventis U.S. LLC); the ketoconazole FDA label on DailyMed (effective January 28, 2026, E. Fougera & Co. a division of Fougera Pharmaceuticals, LLC).
What does the cabazitaxel label say about ketoconazole?
Cabazitaxel label, drug interactionsStrong CYP3A inhibitors (e.g., ketoconazole, itraconazole, clarithromycin, atazanavir, indinavir, nefazodone, nelfinavir, ritonavir, saquinavir, telithromycin, voriconazole) may increase plasma concentrations of cabazitaxel.
Source: FDA drug label (Jevtana), Sanofi-Aventis U.S. LLC, effective October 7, 2025 (SPL set de3d9c26-572b-4ea4-9b2d-dd58a2b3e8fa), via openFDA; the full label on DailyMed
What does the ketoconazole label say about cabazitaxel?
Ketoconazole's label (effective January 28, 2026) does not name cabazitaxel in these sections. A label lists what its studies and reports found; it is not a complete list.
Source: FDA drug label (ketoconazole), E. Fougera & Co. a division of Fougera Pharmaceuticals, LLC, effective January 28, 2026 (SPL set cad7c647-34a9-4e4e-83b3-8d78e58f588f), 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
| Cabazitaxel | Ketoconazole | |
|---|---|---|
| Labeled for | Prostate cancer | Fungal infections |
| Boxed warning | Yes | No |
| Pharmacy cost (NADAC) | n/a | $0.249 per gram 2% cream |
| 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