Drug interactions
Dasatinib + Itraconazole
Severity: Major
Dasatinib and Itraconazole: major interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Itraconazole substantially increases dasatinib exposure, raising the risk of myelosuppression, fluid retention and pleural effusion. Both drugs also have QT-prolonging potential.
What this interaction means in plain words
Dasatinib and Itraconazole can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Dasatinib belongs to Oncology; Itraconazole belongs to Anti Fungals.
Why it happens
CYP3A4 inhibition of dasatinib metabolism plus additive QT prolongation.
What to do
Use a non-CYP3A4-inhibiting antifungal instead. If unavoidable, reduce the dasatinib dose per labeling and monitor blood counts and ECG.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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Other interactions of Itraconazole
- Alfuzosin + Itraconazole Contraindicated
- Alprazolam + Itraconazole Contraindicated
- Avanafil + Itraconazole Contraindicated
- Conivaptan + Itraconazole Contraindicated
- Dihydroergotamine intranasal + Itraconazole Contraindicated
- Dihydroergotamine + Itraconazole Contraindicated
Other interactions of Dasatinib
- Dasatinib + Saquinavir Contraindicated
- Dasatinib + Thioridazine Contraindicated
- Adagrasib + Dasatinib Major
- Amiodarone + Dasatinib Major
- Amisulpride + Dasatinib Major
- Amitriptyline + Dasatinib Major
Frequently asked questions
Can I take Dasatinib with Itraconazole?
MediHelp rates the interaction as major. Dasatinib and Itraconazole can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Itraconazole substantially increases dasatinib exposure, raising the risk of myelosuppression, fluid retention and pleural effusion. Both drugs also have QT-prolonging potential.
How serious is the interaction between Dasatinib and Itraconazole?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Use a non-CYP3A4-inhibiting antifungal instead. If unavoidable, reduce the dasatinib dose per labeling and monitor blood counts and ECG.
What other medicines interact with Itraconazole?
MediHelp also lists interactions of Itraconazole with, for example, Alfuzosin, Alprazolam, Avanafil. The full list is on the Itraconazole page.
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