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What the FDA labels say about taking them together

Cabazitaxel and voriconazole

Cabazitaxel's FDA label of October 7, 2025 names voriconazole in its drug interactions section; the voriconazole labels PlainMeds reads (3) do 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 voriconazole FDA label on DailyMed (effective February 26, 2026, Roerig).

What does the cabazitaxel label say about voriconazole?

Cabazitaxel label, drug interactions

Strong 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 voriconazole label say about cabazitaxel?

Voriconazole's label (effective February 26, 2026) and its 2 other brand-application labels do 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 (VFEND), NDA021630 (Pf Prism Cv), as published by Roerig, effective February 26, 2026 (SPL set ce3ef5cf-3087-4d92-9d94-9eb8287228db), 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

0Cabazitaxel generic labelers
31Voriconazole generic labelers
CabazitaxelVoriconazole
Labeled forProstate cancerFungal infections
Boxed warningYesNo
Pharmacy cost (NADAC)n/a$1.88 per tablet 200 mg tablet
Shortage nowNo current entryA presentation being discontinued

Source: FDA NDC Directory, CMS NADAC of October 7, 2026 and the FDA Drug Shortage Database (FDA files October 8, 2026)

What next?