Drug interactions
Dexmedetomidine + Trifluoperazine
Severity: Moderate
Dexmedetomidine and Trifluoperazine: 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
Trifluoperazine is a phenothiazine antipsychotic with sedative, hypotensive and QT-prolonging properties. Combined with dexmedetomidine it can increase sedation and the risk of hypotension and bradycardia.
What this interaction means in plain words
Dexmedetomidine and Trifluoperazine 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
Additive CNS depression and hypotension from alpha-2 agonism plus dopamine, histamine and alpha-1 receptor blockade.
What to do
Reduce the dexmedetomidine dose as needed and monitor sedation, blood pressure, heart rate and ECG where QT risk exists.
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 Dexmedetomidine
Frequently asked questions
Can I take Dexmedetomidine with Trifluoperazine?
MediHelp rates the interaction as moderate. Dexmedetomidine and Trifluoperazine 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. Trifluoperazine is a phenothiazine antipsychotic with sedative, hypotensive and QT-prolonging properties. Combined with dexmedetomidine it can increase sedation and the risk of hypotension and bradycardia.
How serious is the interaction between Dexmedetomidine and Trifluoperazine?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Reduce the dexmedetomidine dose as needed and monitor sedation, blood pressure, heart rate and ECG where QT risk exists.
What other medicines interact with Dexmedetomidine?
MediHelp also lists interactions of Dexmedetomidine with, for example, Buprenorphine long-acting, Calcium / magnesium / potassium / sodium oxybates, Dextromoramide. The full list is on the Dexmedetomidine page.
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