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Drug interactions

Iloperidone + Selegiline

Severity: Moderate

Iloperidone and Selegiline: 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 act on dopamine and serotonin pathways. Selegiline's dopaminergic effect opposes antipsychotic D2 blockade, which may worsen psychosis or parkinsonism. Rare serotonin syndrome or neuroleptic malignant syndrome has been described with similar combinations.

What this interaction means in plain words

Iloperidone and Selegiline 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; Selegiline belongs to Central Nervous System.

Evidence level: Low

Why it happens

Pharmacodynamic opposition at dopamine receptors combined with additive serotonergic effects.

What to do

Monitor for mental status change, rigidity, hyperthermia and autonomic instability, and for worsening of psychosis or motor symptoms. Stop one or both drugs if serotonin syndrome or NMS is suspected.

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 Selegiline?

MediHelp rates the interaction as moderate. Iloperidone and Selegiline 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 act on dopamine and serotonin pathways. Selegiline's dopaminergic effect opposes antipsychotic D2 blockade, which may worsen psychosis or parkinsonism. Rare serotonin syndrome or neuroleptic malignant syndrome has been described with similar combinations.

How serious is the interaction between Iloperidone and Selegiline?

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 mental status change, rigidity, hyperthermia and autonomic instability, and for worsening of psychosis or motor symptoms. Stop one or both drugs if serotonin syndrome or NMS is suspected.

What other medicines interact with Selegiline?

MediHelp also lists interactions of Selegiline with, for example, Amitriptyline, Amoxapine, Atomoxetine. The full list is on the Selegiline page.

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

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