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Drug interactions

Amobarbital + Pexidartinib

Severity: Major

Amobarbital and Pexidartinib: 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

Amobarbital may reduce pexidartinib plasma levels through enzyme induction. This may reduce therapeutic benefit in tenosynovial giant cell tumor.

What this interaction means in plain words

Amobarbital and Pexidartinib 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.

Amobarbital belongs to Central Nervous System; Pexidartinib belongs to Oncology.

Evidence level: Moderate

Why it happens

CYP3A4 induction accelerates the metabolism of pexidartinib.

What to do

Avoid concurrent use and select a non-inducing alternative. Monitor clinical response if exposure cannot be avoided.

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 Amobarbital with Pexidartinib?

MediHelp rates the interaction as major. Amobarbital and Pexidartinib 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. Amobarbital may reduce pexidartinib plasma levels through enzyme induction. This may reduce therapeutic benefit in tenosynovial giant cell tumor.

How serious is the interaction between Amobarbital and Pexidartinib?

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 concurrent use and select a non-inducing alternative. Monitor clinical response if exposure cannot be avoided.

What other medicines interact with Amobarbital?

MediHelp also lists interactions of Amobarbital with, for example, Calcium / magnesium / potassium / sodium oxybates, Doravirine, Elbasvir / grazoprevir. The full list is on the Amobarbital page.

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

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