Drug interactions
Ergotamine + Erythromycin lactobionate
Severity: Contraindicated
Ergotamine and Erythromycin lactobionate: 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
Intravenous erythromycin markedly raises ergotamine exposure, and this has led to acute ergotism with severe vasospasm and ischemia. Ergotamine labeling contraindicates its use with macrolide antibiotics.
What this interaction means in plain words
Ergotamine and Erythromycin lactobionate 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; Erythromycin lactobionate belongs to Anti Bacterial.
Why it happens
Erythromycin inhibits CYP3A4-mediated metabolism of ergotamine, increasing its systemic concentrations.
What to do
Do not co-administer; withhold ergotamine while erythromycin is given or select a different antibiotic. Monitor for signs of peripheral ischemia if exposure occurs.
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 Erythromycin lactobionate
- Cisapride + Erythromycin lactobionate Contraindicated
- Dihydroergotamine + Erythromycin lactobionate Contraindicated
- Dronedarone + Erythromycin lactobionate Contraindicated
- Eletriptan + Erythromycin lactobionate Contraindicated
- Erythromycin lactobionate + Flibanserin Contraindicated
- Erythromycin lactobionate + Lovastatin Contraindicated
Frequently asked questions
Can I take Ergotamine with Erythromycin lactobionate?
MediHelp rates the interaction as contraindicated. Ergotamine and Erythromycin lactobionate 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. Intravenous erythromycin markedly raises ergotamine exposure, and this has led to acute ergotism with severe vasospasm and ischemia. Ergotamine labeling contraindicates its use with macrolide antibiotics.
How serious is the interaction between Ergotamine and Erythromycin lactobionate?
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; withhold ergotamine while erythromycin is given or select a different antibiotic. Monitor for signs of peripheral ischemia if exposure occurs.
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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