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What the FDA labels say about taking them together

Glasdegib and itraconazole

Itraconazole's FDA label of July 13, 2026 names glasdegib in its drug interactions section; the glasdegib label PlainMeds reads does not name itraconazole. The itraconazole label: “Glasdegib Refer to the glasdegib prescribing information for safety monitoring if concomitant use cannot be avoided.”

Check it at the source: the glasdegib FDA label on DailyMed (effective December 12, 2025, Pfizer Laboratories Div Pfizer Inc); the itraconazole FDA label on DailyMed (effective July 13, 2026, Janssen Pharmaceuticals, Inc.).

What does the glasdegib label say about itraconazole?

Glasdegib's label (effective December 12, 2025) does not name itraconazole 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 itraconazole label say about glasdegib?

Itraconazole label, drug interactions

Glasdegib Refer to the glasdegib prescribing information for safety monitoring if concomitant use cannot be avoided.

Source: FDA drug label (SPORANOX), Janssen Pharmaceuticals, Inc., effective July 13, 2026 (SPL set a4d555fa-787c-40fb-bb7d-b0d4f7318fd0), 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

0Glasdegib generic labelers
11Itraconazole generic labelers
GlasdegibItraconazole
Labeled forLeukemia, lymphoma and myelomaFungal infections
Boxed warningYesYes
Pharmacy cost (NADAC)n/a$0.910 per capsule 100 mg capsule
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?