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Drug interactions

Chloroquine + Tazemetostat

Severity: Minor

Chloroquine and Tazemetostat: 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 to moderate CYP3A4 inducer and may lower exposure to CYP3A4 substrates. Chloroquine is metabolized only in part by CYP3A4, so any reduction in its levels is likely modest and of uncertain clinical significance.

What this interaction means in plain words

Chloroquine and Tazemetostat have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.

Chloroquine belongs to Anti Parasitic; Tazemetostat belongs to Miscellaneous.

Evidence level: Low

Why it happens

Induction of CYP3A4 by tazemetostat may modestly increase chloroquine clearance.

What to do

No routine dose change is needed. Watch for reduced efficacy of chloroquine, particularly when it is used for malaria treatment or prophylaxis.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Chloroquine with Tazemetostat?

MediHelp rates the interaction as minor. Chloroquine and Tazemetostat 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 to moderate CYP3A4 inducer and may lower exposure to CYP3A4 substrates. Chloroquine is metabolized only in part by CYP3A4, so any reduction in its levels is likely modest and of uncertain clinical significance.

How serious is the interaction between Chloroquine and Tazemetostat?

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. Watch for reduced efficacy of chloroquine, particularly when it is used for malaria treatment or prophylaxis.

What other medicines interact with Chloroquine?

MediHelp also lists interactions of Chloroquine with, for example, Cisapride, Dofetilide, Dronedarone. The full list is on the Chloroquine page.

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