Drug interactions
Dihydroergotamine + Voriconazole
Severity: Contraindicated
Dihydroergotamine and Voriconazole: contraindicated 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
Voriconazole raises dihydroergotamine levels and risks ergotism, with severe peripheral and cerebral vasospasm and ischemia. The outcome can be limb or organ threatening.
What this interaction means in plain words
Dihydroergotamine and Voriconazole are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two.
Dihydroergotamine belongs to Central Nervous System; Voriconazole belongs to Anti Fungals.
Why it happens
Strong CYP3A4 inhibition by voriconazole reduces dihydroergotamine metabolism.
What to do
Do not use together; choose a non-ergot migraine therapy during voriconazole treatment.
What to ask your pharmacist
- Is there an alternative to one of these two medicines for me?
- If both are essential, who is monitoring me and how often?
- Which symptoms mean I should stop and seek help straight away?
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Other interactions of Voriconazole
- Avanafil + Voriconazole Contraindicated
- Butabarbital + Voriconazole Contraindicated
- Carbamazepine + Voriconazole Contraindicated
- Conivaptan + Voriconazole Contraindicated
- Dihydroergotamine intranasal + Voriconazole Contraindicated
- Dofetilide + Voriconazole Contraindicated
Other interactions of Dihydroergotamine
- Almotriptan + Dihydroergotamine Contraindicated
- Clarithromycin + Dihydroergotamine Contraindicated
- Dihydroergotamine + Dopamine Contraindicated
- Dihydroergotamine + Dronedarone Contraindicated
- Dihydroergotamine + Efavirenz Contraindicated
- Dihydroergotamine + Eletriptan Contraindicated
Frequently asked questions
Can I take Dihydroergotamine with Voriconazole?
MediHelp rates the interaction as contraindicated. Dihydroergotamine and Voriconazole are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two. Voriconazole raises dihydroergotamine levels and risks ergotism, with severe peripheral and cerebral vasospasm and ischemia. The outcome can be limb or organ threatening.
How serious is the interaction between Dihydroergotamine and Voriconazole?
MediHelp rates it contraindicated, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Do not use together; choose a non-ergot migraine therapy during voriconazole treatment.
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.
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