What the FDA labels say about taking them together
Glasdegib and voriconazole
Voriconazole's FDA label of February 26, 2026 names glasdegib in its drug interactions section; the glasdegib label PlainMeds reads does not name voriconazole. The voriconazole label: “Glasdegib (CYP3A4 Inhibition) Not Studied In Vivo or In Vitro, but Drug Plasma Exposure Likely to be Increased Consider alternative therapies.”
Check it at the source: the glasdegib FDA label on DailyMed (effective December 12, 2025, Pfizer Laboratories Div Pfizer Inc); the voriconazole FDA label on DailyMed (effective February 26, 2026, Roerig).
What does the glasdegib label say about voriconazole?
Glasdegib's label (effective December 12, 2025) does not name voriconazole in these sections. A label lists what its studies and reports found; it is not a complete list.
Source: FDA drug label (Daurismo), Pfizer Laboratories Div Pfizer Inc, effective December 12, 2025 (SPL set 204a6f7e-c9a4-472b-abd2-9527bda64d17), via openFDA; the full label on DailyMed
What does the voriconazole label say about glasdegib?
Voriconazole label, drug interactionsGlasdegib (CYP3A4 Inhibition) Not Studied In Vivo or In Vitro, but Drug Plasma Exposure Likely to be Increased Consider alternative therapies.
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
| Glasdegib | Voriconazole | |
|---|---|---|
| Labeled for | Leukemia, lymphoma and myeloma | Fungal infections |
| Boxed warning | Yes | No |
| Pharmacy cost (NADAC) | n/a | $1.88 per tablet 200 mg tablet |
| Shortage now | No current entry | A 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?
- Check more medicines together
- up to five at once