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Interactions médicamenteuses

Cimetidine + Dihydroergotamine

Gravité: Majeure

Cimetidine and Dihydroergotamine: major interaction.

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Résumé

Cimetidine may increase dihydroergotamine concentrations. Elevated levels raise the risk of ergotism, with peripheral vasospasm and ischemia.

Ce que signifie cette interaction, en termes simples

Cimetidine and Dihydroergotamine can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.

Cimetidine belongs to Gastrointestinal Tract; Dihydroergotamine belongs to Central Nervous System.

Niveau de preuve: Moderate

Pourquoi elle survient

Cimetidine inhibits CYP3A4, reducing the metabolism of dihydroergotamine.

Conduite à tenir

Avoid the combination where possible and choose famotidine or another non-inhibiting acid suppressant. If used together, monitor for numbness, tingling, cold extremities, nausea and chest or limb pain.

Questions à poser à votre pharmacien

  • Does the benefit of taking both outweigh the risk in my case?
  • Do I need any blood test, ECG or other check while on both?
  • What early warning signs should I watch for, and what should I do if they appear?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Questions fréquentes

Can I take Cimetidine with Dihydroergotamine?

MediHelp rates the interaction as major. Cimetidine and Dihydroergotamine can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Cimetidine may increase dihydroergotamine concentrations. Elevated levels raise the risk of ergotism, with peripheral vasospasm and ischemia.

How serious is the interaction between Cimetidine and Dihydroergotamine?

MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid the combination where possible and choose famotidine or another non-inhibiting acid suppressant. If used together, monitor for numbness, tingling, cold extremities, nausea and chest or limb pain.

What other medicines interact with Cimetidine?

MediHelp also lists interactions of Cimetidine with, for example, Dofetilide, Fezolinetant, Alfentanil. The full list is on the Cimetidine page.

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Ouvrez le référentiel complet, vérifiez les interactions entre plusieurs médicaments et utilisez les outils de posologie dans l'application MediHelp.

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