Drug interactions
Fluphenazine + Lemborexant
Severity: Moderate
Fluphenazine and Lemborexant: 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
Lemborexant and fluphenazine each cause sedation, so combined use may increase somnolence and impair next-day alertness and coordination.
What this interaction means in plain words
Fluphenazine and Lemborexant 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.
Fluphenazine belongs to Central Nervous System; Lemborexant belongs to Central Nervous System.
Why it happens
Additive CNS depression from orexin antagonism and phenothiazine sedative effects.
What to do
Start with the lowest lemborexant dose and monitor for daytime drowsiness. Advise patients to avoid driving until the effects are known.
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 Lemborexant
Frequently asked questions
Can I take Fluphenazine with Lemborexant?
MediHelp rates the interaction as moderate. Fluphenazine and Lemborexant 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. Lemborexant and fluphenazine each cause sedation, so combined use may increase somnolence and impair next-day alertness and coordination.
How serious is the interaction between Fluphenazine and Lemborexant?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Start with the lowest lemborexant dose and monitor for daytime drowsiness. Advise patients to avoid driving until the effects are known.
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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