Drug interactions
Brexpiprazole + Droperidol
Severity: Major
Brexpiprazole and Droperidol: major interaction.
Last updated Sources: EMA SmPC
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 are antipsychotic-type dopamine antagonists, so sedation is additive. Droperidol also carries a boxed warning for QT prolongation and torsades de pointes, and adding another antipsychotic may add to that risk.
What this interaction means in plain words
Brexpiprazole and Droperidol 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 CNS depression and dopamine D2 antagonism, with possible additive QT prolongation from droperidol.
What to do
Obtain a baseline ECG and correct potassium and magnesium before droperidol use. Monitor ECG and sedation, or choose a non-QT-prolonging alternative.
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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References
Other interactions of Brexpiprazole
Frequently asked questions
Can I take Brexpiprazole with Droperidol?
MediHelp rates the interaction as major. Brexpiprazole and Droperidol 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 are antipsychotic-type dopamine antagonists, so sedation is additive. Droperidol also carries a boxed warning for QT prolongation and torsades de pointes, and adding another antipsychotic may add to that risk.
How serious is the interaction between Brexpiprazole and Droperidol?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Obtain a baseline ECG and correct potassium and magnesium before droperidol use. Monitor ECG and sedation, or choose a non-QT-prolonging alternative.
What other medicines interact with Brexpiprazole?
MediHelp also lists interactions of Brexpiprazole with, for example, Alfentanil, Amisulpride, Apalutamide. The full list is on the Brexpiprazole page.
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