Drug interactions
Tazemetostat + Zonisamide
Severity: Minor
Tazemetostat and Zonisamide: minor 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
Tazemetostat is a weak CYP3A4 inducer and may modestly lower exposure to CYP3A4 substrates such as zonisamide. The clinical effect is expected to be small but could reduce seizure control in some patients.
What this interaction means in plain words
Tazemetostat and Zonisamide have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Tazemetostat belongs to Miscellaneous; Zonisamide belongs to Central Nervous System.
Why it happens
Weak induction of CYP3A4 by tazemetostat increases zonisamide metabolism.
What to do
No routine dose change is needed; monitor seizure control during tazemetostat therapy and adjust zonisamide if breakthrough seizures occur.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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Other interactions of Zonisamide
- Zonisamide + Zuranolone Major
- Acetazolamide + Zonisamide Moderate
- Amisulpride + Zonisamide Moderate
- Amobarbital + Zonisamide Moderate
- Apalutamide + Zonisamide Moderate
- Asenapine transdermal + Zonisamide Moderate
Other interactions of Tazemetostat
Frequently asked questions
Can I take Tazemetostat with Zonisamide?
MediHelp rates the interaction as minor. Tazemetostat and Zonisamide have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Tazemetostat is a weak CYP3A4 inducer and may modestly lower exposure to CYP3A4 substrates such as zonisamide. The clinical effect is expected to be small but could reduce seizure control in some patients.
How serious is the interaction between Tazemetostat and Zonisamide?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No routine dose change is needed; monitor seizure control during tazemetostat therapy and adjust zonisamide if breakthrough seizures occur.
What other medicines interact with Zonisamide?
MediHelp also lists interactions of Zonisamide with, for example, Zuranolone, Acetazolamide, Amisulpride. The full list is on the Zonisamide page.
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