Drug interactions
Elranatamab + Ethosuximide
Severity: Moderate
Elranatamab and Ethosuximide: moderate 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
Cytokine release syndrome from elranatamab can transiently suppress CYP enzyme activity. Ethosuximide exposure may then rise, mostly around step-up dosing and during CRS.
What this interaction means in plain words
Elranatamab and Ethosuximide can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Elranatamab belongs to Oncology; Ethosuximide belongs to Central Nervous System.
Why it happens
Cytokine-mediated suppression of CYP3A4 expression and activity.
What to do
Monitor for ethosuximide toxicity during step-up dosing and any CRS episode. Check serum levels if symptoms arise.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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Other interactions of Ethosuximide
- Benzhydrocodone / acetaminophen + Ethosuximide Major
- Buprenorphine long-acting + Ethosuximide Major
- Buprenorphine subdermal implant + Ethosuximide Major
- Buprenorphine transdermal + Ethosuximide Major
- Calcium / magnesium / potassium / sodium oxybates + Ethosuximide Major
- Ethosuximide + Fentanyl intranasal Major
Other interactions of Elranatamab
- Elranatamab + Ergotamine Major
- Elranatamab + Pimozide Major
- Bendamustine + Elranatamab Moderate
- Carbamazepine + Elranatamab Moderate
- Clomipramine + Elranatamab Moderate
- Clozapine + Elranatamab Moderate
Frequently asked questions
Can I take Elranatamab with Ethosuximide?
MediHelp rates the interaction as moderate. Elranatamab and Ethosuximide can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Cytokine release syndrome from elranatamab can transiently suppress CYP enzyme activity. Ethosuximide exposure may then rise, mostly around step-up dosing and during CRS.
How serious is the interaction between Elranatamab and Ethosuximide?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor for ethosuximide toxicity during step-up dosing and any CRS episode. Check serum levels if symptoms arise.
What other medicines interact with Ethosuximide?
MediHelp also lists interactions of Ethosuximide with, for example, Benzhydrocodone / acetaminophen, Buprenorphine long-acting, Buprenorphine subdermal implant. The full list is on the Ethosuximide page.
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