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Drug interactions

Oliceridine + Paroxetine

Severity: Major

Oliceridine and Paroxetine: major 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

Paroxetine strongly inhibits CYP2D6, which is a main pathway for oliceridine clearance, so oliceridine exposure may rise and cause more sedation and respiratory depression. Opioids with serotonergic activity combined with an SSRI also carry a theoretical risk of serotonin syndrome.

What this interaction means in plain words

Oliceridine and Paroxetine can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.

Oliceridine belongs to Musculoskeletal; Paroxetine belongs to Central Nervous System.

Evidence level: Moderate

Why it happens

CYP2D6 inhibition by paroxetine reduces oliceridine clearance, with additive serotonergic and CNS depressant effects.

What to do

Use lower or less frequent oliceridine doses and titrate to effect while monitoring sedation and respiratory rate. Reassess the dose if paroxetine is stopped, and watch for signs of serotonin toxicity.

What to ask your pharmacist

  • Does the benefit of taking both outweigh the risk in my case?
  • Do I need any blood test, ECG or other check while on both?
  • What early warning signs should I watch for, and what should I do if they appear?

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 Oliceridine with Paroxetine?

MediHelp rates the interaction as major. Oliceridine and Paroxetine can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Paroxetine strongly inhibits CYP2D6, which is a main pathway for oliceridine clearance, so oliceridine exposure may rise and cause more sedation and respiratory depression. Opioids with serotonergic activity combined with an SSRI also carry a theoretical risk of serotonin syndrome.

How serious is the interaction between Oliceridine and Paroxetine?

MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Use lower or less frequent oliceridine doses and titrate to effect while monitoring sedation and respiratory rate. Reassess the dose if paroxetine is stopped, and watch for signs of serotonin toxicity.

What other medicines interact with Paroxetine?

MediHelp also lists interactions of Paroxetine with, for example, Isocarboxazid, Methylene blue, Phenelzine. The full list is on the Paroxetine page.

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