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Drug interactions

Idelalisib + Oxycodone

Severity: Major

Idelalisib and Oxycodone: 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

Idelalisib is a strong CYP3A inhibitor and can markedly raise oxycodone exposure, increasing the risk of respiratory depression and prolonged sedation.

What this interaction means in plain words

Idelalisib and Oxycodone 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.

Idelalisib belongs to Oncology; Oxycodone belongs to Musculoskeletal.

Evidence level: Moderate

Why it happens

Strong CYP3A4 inhibition reduces oxycodone metabolism.

What to do

Reduce the oxycodone dose and monitor closely for sedation and respiratory depression. Reassess when idelalisib is stopped as oxycodone levels will fall.

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 Idelalisib with Oxycodone?

MediHelp rates the interaction as major. Idelalisib and Oxycodone 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. Idelalisib is a strong CYP3A inhibitor and can markedly raise oxycodone exposure, increasing the risk of respiratory depression and prolonged sedation.

How serious is the interaction between Idelalisib and Oxycodone?

MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Reduce the oxycodone dose and monitor closely for sedation and respiratory depression. Reassess when idelalisib is stopped as oxycodone levels will fall.

What other medicines interact with Oxycodone?

MediHelp also lists interactions of Oxycodone with, for example, Alvimopan, Calcium / magnesium / potassium / sodium oxybates, Isocarboxazid. The full list is on the Oxycodone page.

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