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Drug interactions

Mefloquine + Tazemetostat

Severity: Moderate

Mefloquine and Tazemetostat: 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

Mefloquine has been described as a CYP3A4 inhibitor, and tazemetostat is metabolized by CYP3A4, so tazemetostat levels may rise. This could increase tazemetostat adverse effects.

What this interaction means in plain words

Mefloquine and Tazemetostat 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.

Mefloquine belongs to Anti Parasitic; Tazemetostat belongs to Miscellaneous.

Evidence level: Low

Why it happens

Possible CYP3A4 inhibition by mefloquine reduces tazemetostat metabolism.

What to do

Monitor for tazemetostat adverse effects such as cytopenias and fatigue. Consider an alternative antimalarial if the combination is poorly tolerated.

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?

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 Mefloquine with Tazemetostat?

MediHelp rates the interaction as moderate. Mefloquine and Tazemetostat 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. Mefloquine has been described as a CYP3A4 inhibitor, and tazemetostat is metabolized by CYP3A4, so tazemetostat levels may rise. This could increase tazemetostat adverse effects.

How serious is the interaction between Mefloquine and Tazemetostat?

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 tazemetostat adverse effects such as cytopenias and fatigue. Consider an alternative antimalarial if the combination is poorly tolerated.

What other medicines interact with Mefloquine?

MediHelp also lists interactions of Mefloquine with, for example, Arsenic trioxide, Dronedarone, Ibutilide. The full list is on the Mefloquine page.

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