Drug interactions
Dihydroergotamine + Erythromycin lactobionate
Severity: Contraindicated
Dihydroergotamine 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
Erythromycin raises dihydroergotamine concentrations, which can cause ergotism with severe peripheral and cerebral vasospasm and ischemia. Cases of limb and organ ischemia have been reported with CYP3A4 inhibitors and ergots.
What this interaction means in plain words
Dihydroergotamine 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.
Dihydroergotamine belongs to Central Nervous System; Erythromycin lactobionate belongs to Anti Bacterial.
Why it happens
Erythromycin inhibits CYP3A4-mediated metabolism of dihydroergotamine.
What to do
Do not use together; choose a non-macrolide antibiotic such as one without CYP3A4 inhibition, or another migraine therapy.
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 Erythromycin lactobionate
- Cisapride + Erythromycin lactobionate Contraindicated
- Dronedarone + Erythromycin lactobionate Contraindicated
- Eletriptan + Erythromycin lactobionate Contraindicated
- Ergotamine + Erythromycin lactobionate Contraindicated
- Erythromycin lactobionate + Flibanserin Contraindicated
- Erythromycin lactobionate + Lovastatin 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 Erythromycin lactobionate?
MediHelp rates the interaction as contraindicated. Dihydroergotamine 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. Erythromycin raises dihydroergotamine concentrations, which can cause ergotism with severe peripheral and cerebral vasospasm and ischemia. Cases of limb and organ ischemia have been reported with CYP3A4 inhibitors and ergots.
How serious is the interaction between Dihydroergotamine 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 use together; choose a non-macrolide antibiotic such as one without CYP3A4 inhibition, or another migraine therapy.
What other medicines interact with Erythromycin lactobionate?
MediHelp also lists interactions of Erythromycin lactobionate with, for example, Cisapride, Dronedarone, Eletriptan. The full list is on the Erythromycin lactobionate page.
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