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Drug interactions

Fentanyl + Lurasidone

Severity: Moderate

Fentanyl and Lurasidone: 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

Lurasidone and fentanyl both cause CNS depression, so their combination can increase sedation, dizziness and orthostatic hypotension. Concern is higher in elderly or debilitated patients.

What this interaction means in plain words

Fentanyl and Lurasidone 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.

Fentanyl belongs to Musculoskeletal; Lurasidone belongs to Central Nervous System.

Evidence level: Moderate

Why it happens

Additive CNS depression and hypotensive effects; fentanyl is also a CYP3A4 substrate but this is not a clinically significant inhibitory effect.

What to do

Monitor sedation, blood pressure and respiratory status, and use the lowest effective doses of both drugs.

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 Fentanyl with Lurasidone?

MediHelp rates the interaction as moderate. Fentanyl and Lurasidone 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. Lurasidone and fentanyl both cause CNS depression, so their combination can increase sedation, dizziness and orthostatic hypotension. Concern is higher in elderly or debilitated patients.

How serious is the interaction between Fentanyl and Lurasidone?

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, blood pressure and respiratory status, and use the lowest effective doses of both drugs.

What other medicines interact with Fentanyl?

MediHelp also lists interactions of Fentanyl with, for example, Alvimopan, Isocarboxazid, Olanzapine / samidorphan. The full list is on the Fentanyl page.

Full monographs, dosing and an interaction checker in the MediHelp app

Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.

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