Drug interactions
Fluconazole + Sonidegib
Severity: Major
Fluconazole and Sonidegib: 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
Fluconazole raises sonidegib exposure, increasing the risk of adverse effects, notably musculoskeletal toxicity such as myopathy and CK elevation.
What this interaction means in plain words
Fluconazole and Sonidegib 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.
Fluconazole belongs to Anti Fungals; Sonidegib belongs to Oncology.
Why it happens
Fluconazole inhibits CYP3A4 metabolism of sonidegib.
What to do
Avoid the combination; if necessary, limit fluconazole to under 14 days and monitor for muscle symptoms and creatine kinase.
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 Fluconazole
- Dihydroergotamine intranasal + Fluconazole Contraindicated
- Dihydroergotamine + Fluconazole Contraindicated
- Dofetilide + Fluconazole Contraindicated
- Domperidone + Fluconazole Contraindicated
- Dronedarone + Fluconazole Contraindicated
- Erythromycin + Fluconazole Contraindicated
Other interactions of Sonidegib
- Amiodarone + Sonidegib Major
- Apalutamide + Sonidegib Major
- Aprepitant + Sonidegib Major
- Armodafinil + Sonidegib Major
- Bosentan + Sonidegib Major
- Carbamazepine + Sonidegib Major
Frequently asked questions
Can I take Fluconazole with Sonidegib?
MediHelp rates the interaction as major. Fluconazole and Sonidegib 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. Fluconazole raises sonidegib exposure, increasing the risk of adverse effects, notably musculoskeletal toxicity such as myopathy and CK elevation.
How serious is the interaction between Fluconazole and Sonidegib?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid the combination; if necessary, limit fluconazole to under 14 days and monitor for muscle symptoms and creatine kinase.
What other medicines interact with Fluconazole?
MediHelp also lists interactions of Fluconazole with, for example, Dihydroergotamine intranasal, Dihydroergotamine, Dofetilide. The full list is on the Fluconazole page.
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