Drug interactions
Ergotamine + Idelalisib
Severity: Contraindicated
Ergotamine and Idelalisib: 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
Idelalisib is a strong CYP3A inhibitor and is expected to substantially increase ergotamine exposure, risking severe vasospasm and ischemia. Strong CYP3A inhibitors are contraindicated with ergotamine.
What this interaction means in plain words
Ergotamine and Idelalisib 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.
Ergotamine belongs to Central Nervous System; Idelalisib belongs to Oncology.
Why it happens
Idelalisib strongly inhibits CYP3A4, markedly reducing ergotamine clearance.
What to do
Do not co-administer; use a non-ergot migraine therapy during idelalisib 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 Ergotamine
- Almotriptan + Ergotamine Contraindicated
- Atazanavir + Ergotamine Contraindicated
- Clarithromycin + Ergotamine Contraindicated
- Cobicistat + Ergotamine Contraindicated
- Darunavir + Ergotamine Contraindicated
- Dihydroergotamine intranasal + Ergotamine Contraindicated
Other interactions of Idelalisib
- Alfuzosin + Idelalisib Contraindicated
- Cisapride + Idelalisib Contraindicated
- Dihydroergotamine + Idelalisib Contraindicated
- Dronedarone + Idelalisib Contraindicated
- Eletriptan + Idelalisib Contraindicated
- Eplerenone + Idelalisib Contraindicated
Frequently asked questions
Can I take Ergotamine with Idelalisib?
MediHelp rates the interaction as contraindicated. Ergotamine and Idelalisib 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. Idelalisib is a strong CYP3A inhibitor and is expected to substantially increase ergotamine exposure, risking severe vasospasm and ischemia. Strong CYP3A inhibitors are contraindicated with ergotamine.
How serious is the interaction between Ergotamine and Idelalisib?
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 co-administer; use a non-ergot migraine therapy during idelalisib treatment.
What other medicines interact with Ergotamine?
MediHelp also lists interactions of Ergotamine with, for example, Almotriptan, Atazanavir, Clarithromycin. The full list is on the Ergotamine page.
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