Drug interactions
Ceritinib + Solifenacin
Severity: Major
Ceritinib and Solifenacin: 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
Ceritinib prolongs the QT interval and inhibits CYP3A4, which raises solifenacin exposure. This increases the risk of QT-related arrhythmia.
What this interaction means in plain words
Ceritinib and Solifenacin 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.
Ceritinib belongs to Oncology; Solifenacin belongs to Genitourinary.
Why it happens
Additive QT prolongation plus CYP3A4 inhibition by ceritinib that raises solifenacin concentrations.
What to do
Avoid the combination and choose another bladder agent. If it cannot be avoided, limit solifenacin to 5 mg daily and monitor ECG and electrolytes.
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 Solifenacin
Other interactions of Ceritinib
- Ceritinib + Cisapride Contraindicated
- Ceritinib + Eletriptan Contraindicated
- Ceritinib + Flibanserin Contraindicated
- Ceritinib + Pimozide Contraindicated
- Ceritinib + Thioridazine Contraindicated
- Ceritinib + Tolvaptan Contraindicated
Frequently asked questions
Can I take Ceritinib with Solifenacin?
MediHelp rates the interaction as major. Ceritinib and Solifenacin 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. Ceritinib prolongs the QT interval and inhibits CYP3A4, which raises solifenacin exposure. This increases the risk of QT-related arrhythmia.
How serious is the interaction between Ceritinib and Solifenacin?
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 and choose another bladder agent. If it cannot be avoided, limit solifenacin to 5 mg daily and monitor ECG and electrolytes.
What other medicines interact with Solifenacin?
MediHelp also lists interactions of Solifenacin with, for example, Adagrasib, Amiodarone, Amisulpride. The full list is on the Solifenacin page.
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