Drug interactions
Daridorexant + Fluphenazine
Severity: Moderate
Daridorexant and Fluphenazine: 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
Both agents depress the CNS, so together they may increase somnolence and impair next-day psychomotor performance and driving ability.
What this interaction means in plain words
Daridorexant and Fluphenazine 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.
Daridorexant belongs to Central Nervous System; Fluphenazine belongs to Central Nervous System.
Why it happens
Additive CNS depression from orexin receptor antagonism and dopamine/histamine blockade by fluphenazine.
What to do
Use the lowest effective daridorexant dose and warn patients about next-day impairment. Reassess the need for both drugs if daytime sedation occurs.
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 Fluphenazine
- Arsenic trioxide + Fluphenazine Contraindicated
- Dofetilide + Fluphenazine Contraindicated
- Fluphenazine + Ibutilide Contraindicated
- Fluphenazine + Pimozide Contraindicated
- Adagrasib + Fluphenazine Major
- Alfentanil + Fluphenazine Major
Other interactions of Daridorexant
Frequently asked questions
Can I take Daridorexant with Fluphenazine?
MediHelp rates the interaction as moderate. Daridorexant and Fluphenazine 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. Both agents depress the CNS, so together they may increase somnolence and impair next-day psychomotor performance and driving ability.
How serious is the interaction between Daridorexant and Fluphenazine?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Use the lowest effective daridorexant dose and warn patients about next-day impairment. Reassess the need for both drugs if daytime sedation occurs.
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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