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Drug interactions

Tucatinib + Vortioxetine

Severity: Moderate

Tucatinib and Vortioxetine: 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

Tucatinib inhibits CYP3A4 and may increase vortioxetine concentrations. Because vortioxetine is mainly cleared by CYP2D6, the effect is expected to be modest.

What this interaction means in plain words

Tucatinib and Vortioxetine 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.

Tucatinib belongs to Oncology; Vortioxetine belongs to Central Nervous System.

Evidence level: Low

Why it happens

CYP3A4 inhibition by tucatinib reduces secondary clearance of vortioxetine.

What to do

Monitor for vortioxetine adverse effects such as nausea and reduce the dose if they occur.

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 Tucatinib with Vortioxetine?

MediHelp rates the interaction as moderate. Tucatinib and Vortioxetine 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. Tucatinib inhibits CYP3A4 and may increase vortioxetine concentrations. Because vortioxetine is mainly cleared by CYP2D6, the effect is expected to be modest.

How serious is the interaction between Tucatinib and Vortioxetine?

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 vortioxetine adverse effects such as nausea and reduce the dose if they occur.

What other medicines interact with Vortioxetine?

MediHelp also lists interactions of Vortioxetine with, for example, Isocarboxazid, Linezolid, Methylene blue. The full list is on the Vortioxetine page.

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