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Drug interactions

Amobarbital + Copanlisib

Severity: Major

Amobarbital and Copanlisib: 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

Copanlisib is cleared mainly by CYP3A4, which amobarbital induces. Reduced copanlisib exposure may compromise anticancer efficacy.

What this interaction means in plain words

Amobarbital and Copanlisib 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.

Evidence level: Moderate

Why it happens

CYP3A4 induction by amobarbital accelerates copanlisib clearance.

What to do

Avoid concurrent strong CYP3A4 inducers and select an alternative to amobarbital. Monitor disease response if unavoidable.

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 Copanlisib?

MediHelp rates the interaction as major. Amobarbital and Copanlisib 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. Copanlisib is cleared mainly by CYP3A4, which amobarbital induces. Reduced copanlisib exposure may compromise anticancer efficacy.

How serious is the interaction between Amobarbital and Copanlisib?

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 strong CYP3A4 inducers and select an alternative to amobarbital. Monitor disease response if unavoidable.

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.

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