Drug interactions
Bromocriptine + Sumatriptan intranasal
Severity: Major
Bromocriptine and Sumatriptan intranasal: major 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
Both agents have vasoconstrictive properties, and bromocriptine is an ergot derivative. Together they may cause additive vasospasm, raising blood pressure and risking coronary or peripheral ischemia. Actual reports are limited, but the mechanism is plausible and cautious spacing is advised.
What this interaction means in plain words
Bromocriptine and Sumatriptan intranasal 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.
Why it happens
Additive vasoconstriction via serotonergic 5-HT1B/1D agonism from sumatriptan and ergot-related vascular effects of bromocriptine.
What to do
Avoid using within 24 hours of each other when possible, and prefer a non-vasoconstrictive migraine treatment. Monitor blood pressure and for chest pain or limb ischemia if both are used.
What to ask your pharmacist
- 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?
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Other interactions of Bromocriptine
Frequently asked questions
Can I take Bromocriptine with Sumatriptan intranasal?
MediHelp rates the interaction as major. Bromocriptine and Sumatriptan intranasal 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. Both agents have vasoconstrictive properties, and bromocriptine is an ergot derivative. Together they may cause additive vasospasm, raising blood pressure and risking coronary or peripheral ischemia. Actual reports are limited, but the mechanism is plausible and cautious spacing is advised.
How serious is the interaction between Bromocriptine and Sumatriptan intranasal?
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 using within 24 hours of each other when possible, and prefer a non-vasoconstrictive migraine treatment. Monitor blood pressure and for chest pain or limb ischemia if both are used.
What other medicines interact with Bromocriptine?
MediHelp also lists interactions of Bromocriptine with, for example, Amisulpride, Atazanavir, Cobicistat. The full list is on the Bromocriptine page.
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