Drug interactions
Carvedilol + Dihydroergotamine intranasal
Severity: Moderate
Carvedilol and Dihydroergotamine intranasal: 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
Intranasal dihydroergotamine is systemically absorbed and causes vasoconstriction. With carvedilol, peripheral perfusion may be reduced, and vasospastic ischemia could be aggravated in susceptible patients.
What this interaction means in plain words
Carvedilol and Dihydroergotamine intranasal 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.
Why it happens
Pharmacodynamic opposition: ergot-induced vasoconstriction combined with beta-blockade reducing peripheral vasodilation.
What to do
Monitor for signs of peripheral ischemia such as cold, pale or painful digits, and discontinue dihydroergotamine if they occur. Avoid in patients with known peripheral vascular disease.
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?
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Other interactions of Carvedilol
Frequently asked questions
Can I take Carvedilol with Dihydroergotamine intranasal?
MediHelp rates the interaction as moderate. Carvedilol and Dihydroergotamine intranasal 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. Intranasal dihydroergotamine is systemically absorbed and causes vasoconstriction. With carvedilol, peripheral perfusion may be reduced, and vasospastic ischemia could be aggravated in susceptible patients.
How serious is the interaction between Carvedilol and Dihydroergotamine intranasal?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor for signs of peripheral ischemia such as cold, pale or painful digits, and discontinue dihydroergotamine if they occur. Avoid in patients with known peripheral vascular disease.
What other medicines interact with Carvedilol?
MediHelp also lists interactions of Carvedilol with, for example, Amifostine, Amiodarone, Arformoterol. The full list is on the Carvedilol page.
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