Drug interactions
Apalutamide + Ceritinib
Severity: Major
Apalutamide and Ceritinib: major interaction.
Last updated Sources: US FDA label
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
Apalutamide can lower ceritinib exposure and may reduce its efficacy. Ceritinib is a CYP3A4 substrate, and labeling recommends avoiding strong CYP3A inducers.
What this interaction means in plain words
Apalutamide and Ceritinib 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.
Apalutamide belongs to Endocrine; Ceritinib belongs to Oncology.
Why it happens
Induction of CYP3A4 increases ceritinib clearance.
What to do
Avoid the combination if possible and choose a non-inducing alternative. If coadministration cannot be avoided, monitor disease response closely.
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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References
Other interactions of Apalutamide
- Apalutamide + Cabotegravir Contraindicated
- Apalutamide + Cobicistat Contraindicated
- Apalutamide + Doravirine Contraindicated
- Apalutamide + Elbasvir / grazoprevir Contraindicated
- Apalutamide + Ensitrelvir Contraindicated
- Apalutamide + Fostemsavir Contraindicated
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 Apalutamide with Ceritinib?
MediHelp rates the interaction as major. Apalutamide and Ceritinib 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. Apalutamide can lower ceritinib exposure and may reduce its efficacy. Ceritinib is a CYP3A4 substrate, and labeling recommends avoiding strong CYP3A inducers.
How serious is the interaction between Apalutamide and Ceritinib?
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 possible and choose a non-inducing alternative. If coadministration cannot be avoided, monitor disease response closely.
What other medicines interact with Apalutamide?
MediHelp also lists interactions of Apalutamide with, for example, Cabotegravir, Cobicistat, Doravirine. The full list is on the Apalutamide page.
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