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Drug interactions

Esketamine intranasal + Fluphenazine

Severity: Moderate

Esketamine intranasal 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 CNS function, so combined use can increase sedation, dizziness, and impaired psychomotor performance. Esketamine also raises blood pressure, while fluphenazine may cause hypotension, making hemodynamic effects unpredictable.

What this interaction means in plain words

Esketamine intranasal 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.

Evidence level: Moderate

Why it happens

Additive CNS depressant effects, with opposing effects on blood pressure.

What to do

Monitor sedation level and blood pressure during and after esketamine administration in the monitored setting. Advise patients not to drive until the next day after a restful sleep.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Esketamine intranasal with Fluphenazine?

MediHelp rates the interaction as moderate. Esketamine intranasal 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 CNS function, so combined use can increase sedation, dizziness, and impaired psychomotor performance. Esketamine also raises blood pressure, while fluphenazine may cause hypotension, making hemodynamic effects unpredictable.

How serious is the interaction between Esketamine intranasal 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: Monitor sedation level and blood pressure during and after esketamine administration in the monitored setting. Advise patients not to drive until the next day after a restful sleep.

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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