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Drug interactions

Tasimelteon + Voriconazole

Severity: Minor

Tasimelteon and Voriconazole: 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

Tasimelteon is metabolized by CYP1A2 and CYP3A4, so voriconazole may increase its exposure. This could lead to more somnolence or other adverse effects, though the clinical impact is likely modest.

What this interaction means in plain words

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

Tasimelteon belongs to Central Nervous System; Voriconazole belongs to Anti Fungals.

Evidence level: Low

Why it happens

Voriconazole inhibits CYP3A4-mediated metabolism of tasimelteon.

What to do

No dose change is routinely required; monitor for excess drowsiness or headache.

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 Tasimelteon with Voriconazole?

MediHelp rates the interaction as minor. Tasimelteon and Voriconazole have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Tasimelteon is metabolized by CYP1A2 and CYP3A4, so voriconazole may increase its exposure. This could lead to more somnolence or other adverse effects, though the clinical impact is likely modest.

How serious is the interaction between Tasimelteon and Voriconazole?

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 dose change is routinely required; monitor for excess drowsiness or headache.

What other medicines interact with Voriconazole?

MediHelp also lists interactions of Voriconazole with, for example, Avanafil, Butabarbital, Carbamazepine. The full list is on the Voriconazole page.

Full monographs, dosing and an interaction checker in the MediHelp app

Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.

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