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Drug interactions

Dihydroergotamine + Xylometazoline

Severity: Moderate

Dihydroergotamine and Xylometazoline: moderate 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

Xylometazoline is a nasal decongestant vasoconstrictor with low systemic absorption. Additive vasoconstriction with dihydroergotamine is possible but clinically modest at normal topical doses.

What this interaction means in plain words

Dihydroergotamine and Xylometazoline can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.

Dihydroergotamine belongs to Central Nervous System; Xylometazoline belongs to Respiratory.

Evidence level: Low

Why it happens

Additive vasoconstriction from alpha-adrenergic agonism and ergot vascular effects.

What to do

Limit xylometazoline to short courses at label doses and monitor blood pressure. Stop it if headache, chest pain or limb ischemia symptoms occur.

What to ask your pharmacist

  • Should I take them at different times of day?
  • Does the dose of either medicine need to change?
  • Is there anything I should avoid, such as alcohol or certain foods, while on both?

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

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Frequently asked questions

Can I take Dihydroergotamine with Xylometazoline?

MediHelp rates the interaction as moderate. Dihydroergotamine and Xylometazoline can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Xylometazoline is a nasal decongestant vasoconstrictor with low systemic absorption. Additive vasoconstriction with dihydroergotamine is possible but clinically modest at normal topical doses.

How serious is the interaction between Dihydroergotamine and Xylometazoline?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Limit xylometazoline to short courses at label doses and monitor blood pressure. Stop it if headache, chest pain or limb ischemia symptoms occur.

What other medicines interact with Xylometazoline?

MediHelp also lists interactions of Xylometazoline with, for example, Selegiline, Ergotamine, Isocarboxazid. The full list is on the Xylometazoline page.

Full monographs, dosing and an interaction checker in the MediHelp app

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