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Drug interactions

Dasatinib + Quetiapine

Severity: Major

Dasatinib and Quetiapine: 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

Dasatinib is a weak-to-moderate CYP3A4 inhibitor and may raise quetiapine levels. Both drugs can prolong the QT interval, so the combination increases arrhythmia risk, including torsades de pointes.

What this interaction means in plain words

Dasatinib and Quetiapine 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.

Dasatinib belongs to Oncology; Quetiapine belongs to Central Nervous System.

Evidence level: Moderate

Why it happens

Additive QT prolongation, plus dasatinib inhibition of CYP3A4-mediated quetiapine metabolism.

What to do

Obtain a baseline ECG, correct potassium and magnesium, and monitor QTc during combined use; consider reducing the quetiapine dose or choosing an alternative.

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 Dasatinib with Quetiapine?

MediHelp rates the interaction as major. Dasatinib and Quetiapine 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. Dasatinib is a weak-to-moderate CYP3A4 inhibitor and may raise quetiapine levels. Both drugs can prolong the QT interval, so the combination increases arrhythmia risk, including torsades de pointes.

How serious is the interaction between Dasatinib and Quetiapine?

MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Obtain a baseline ECG, correct potassium and magnesium, and monitor QTc during combined use; consider reducing the quetiapine dose or choosing an alternative.

What other medicines interact with Quetiapine?

MediHelp also lists interactions of Quetiapine with, for example, Adagrasib, Amiodarone, Amisulpride. The full list is on the Quetiapine page.

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