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Drug interactions

Clorazepate + Idelalisib

Severity: Major

Clorazepate and Idelalisib: 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 increase exposure to the active metabolite of clorazepate. This may cause prolonged sedation and respiratory depression.

What this interaction means in plain words

Clorazepate and Idelalisib 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.

Clorazepate belongs to Central Nervous System; Idelalisib belongs to Oncology.

Evidence level: Moderate

Why it happens

Idelalisib strongly inhibits CYP3A4, reducing benzodiazepine metabolite clearance.

What to do

Avoid if possible or use a lower clorazepate dose. Monitor for sedation and respiratory depression.

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 Clorazepate with Idelalisib?

MediHelp rates the interaction as major. Clorazepate and Idelalisib 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 increase exposure to the active metabolite of clorazepate. This may cause prolonged sedation and respiratory depression.

How serious is the interaction between Clorazepate and Idelalisib?

MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid if possible or use a lower clorazepate dose. Monitor for sedation and respiratory depression.

What other medicines interact with Clorazepate?

MediHelp also lists interactions of Clorazepate with, for example, Calcium / magnesium / potassium / sodium oxybates, Sodium oxybate, Alfentanil. The full list is on the Clorazepate page.

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