Drug interactions
Fentanyl intranasal + Fluphenazine
Severity: Major
Fentanyl intranasal and Fluphenazine: 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
Fentanyl and fluphenazine both depress the CNS, and together they can cause deep sedation, hypotension, respiratory depression, coma or death.
What this interaction means in plain words
Fentanyl intranasal and Fluphenazine 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 pharmacodynamic CNS and respiratory depression.
What to do
Reserve combined use for patients without adequate alternatives, use reduced doses, and monitor sedation, respiratory rate and blood pressure.
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 Fluphenazine
- Arsenic trioxide + Fluphenazine Contraindicated
- Dofetilide + Fluphenazine Contraindicated
- Fluphenazine + Ibutilide Contraindicated
- Fluphenazine + Pimozide Contraindicated
- Adagrasib + Fluphenazine Major
- Alfentanil + Fluphenazine Major
Frequently asked questions
Can I take Fentanyl intranasal with Fluphenazine?
MediHelp rates the interaction as major. Fentanyl intranasal and Fluphenazine 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. Fentanyl and fluphenazine both depress the CNS, and together they can cause deep sedation, hypotension, respiratory depression, coma or death.
How serious is the interaction between Fentanyl intranasal and Fluphenazine?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Reserve combined use for patients without adequate alternatives, use reduced doses, and monitor sedation, respiratory rate and blood pressure.
What other medicines interact with Fluphenazine?
MediHelp also lists interactions of Fluphenazine with, for example, Arsenic trioxide, Dofetilide, Ibutilide. The full list is on the Fluphenazine page.
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