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Drug interactions

Iloperidone + Tramadol

Severity: Moderate

Iloperidone and Tramadol: 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

Iloperidone is a time-dependent CYP3A4 inhibitor and may raise tramadol exposure, while both drugs also cause sedation. Higher parent tramadol levels may increase the risk of seizures, serotonergic effects and CNS depression.

What this interaction means in plain words

Iloperidone and Tramadol 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.

Iloperidone belongs to Central Nervous System; Tramadol belongs to Musculoskeletal.

Evidence level: Low

Why it happens

Inhibition of CYP3A4-mediated tramadol N-demethylation plus additive CNS depressant effects.

What to do

Monitor for excessive sedation, seizures and serotonergic symptoms, and use the lowest effective tramadol dose. Reduce the tramadol dose if adverse effects appear.

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 Iloperidone with Tramadol?

MediHelp rates the interaction as moderate. Iloperidone and Tramadol 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. Iloperidone is a time-dependent CYP3A4 inhibitor and may raise tramadol exposure, while both drugs also cause sedation. Higher parent tramadol levels may increase the risk of seizures, serotonergic effects and CNS depression.

How serious is the interaction between Iloperidone and Tramadol?

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 for excessive sedation, seizures and serotonergic symptoms, and use the lowest effective tramadol dose. Reduce the tramadol dose if adverse effects appear.

What other medicines interact with Tramadol?

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