Drug interactions
Cabergoline + Dexfenfluramine
Severity: Major
Cabergoline and Dexfenfluramine: 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
Dexfenfluramine releases serotonin and has been linked to valvular heart disease and pulmonary hypertension, and cabergoline has 5-HT2B agonist activity associated with cardiac valve fibrosis. Using both increases the risk of valvulopathy and serotonergic effects.
What this interaction means in plain words
Cabergoline and Dexfenfluramine 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 serotonergic activity, including 5-HT2B receptor stimulation.
What to do
Avoid the combination; dexfenfluramine is withdrawn in most markets. If exposure has occurred, monitor for valvular disease with echocardiography.
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 Cabergoline
Frequently asked questions
Can I take Cabergoline with Dexfenfluramine?
MediHelp rates the interaction as major. Cabergoline and Dexfenfluramine 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. Dexfenfluramine releases serotonin and has been linked to valvular heart disease and pulmonary hypertension, and cabergoline has 5-HT2B agonist activity associated with cardiac valve fibrosis. Using both increases the risk of valvulopathy and serotonergic effects.
How serious is the interaction between Cabergoline and Dexfenfluramine?
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 What to do, in brief: Avoid the combination; dexfenfluramine is withdrawn in most markets. If exposure has occurred, monitor for valvular disease with echocardiography.
What other medicines interact with Cabergoline?
MediHelp also lists interactions of Cabergoline with, for example, Benperidol, Chlorpromazine, Clarithromycin. The full list is on the Cabergoline page.
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