Drug interactions
Chlorpromazine + Dasatinib
Severity: Major
Chlorpromazine and Dasatinib: major interaction.
Last updated Sources: UK SmPC
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
Both drugs can prolong the QT interval, so combined use increases the risk of torsades de pointes. The risk is greater with electrolyte disturbances, bradycardia or underlying heart disease.
What this interaction means in plain words
Chlorpromazine and Dasatinib 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.
Chlorpromazine belongs to Central Nervous System; Dasatinib belongs to Oncology.
Why it happens
Additive prolongation of cardiac repolarization through effects on cardiac potassium channels.
What to do
Obtain a baseline ECG and correct potassium and magnesium before starting. Repeat ECG monitoring during therapy, or choose a non-QT-prolonging 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?
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References
Other interactions of Chlorpromazine
- Chlorpromazine + Dofetilide Contraindicated
- Chlorpromazine + Dronedarone Contraindicated
- Chlorpromazine + Droperidol Contraindicated
- Chlorpromazine + Ibutilide Contraindicated
- Chlorpromazine + Metrizamide Contraindicated
- Chlorpromazine + Panobinostat Contraindicated
Other interactions of Dasatinib
- Dasatinib + Saquinavir Contraindicated
- Dasatinib + Thioridazine Contraindicated
- Adagrasib + Dasatinib Major
- Amiodarone + Dasatinib Major
- Amisulpride + Dasatinib Major
- Amitriptyline + Dasatinib Major
Frequently asked questions
Can I take Chlorpromazine with Dasatinib?
MediHelp rates the interaction as major. Chlorpromazine and Dasatinib 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. Both drugs can prolong the QT interval, so combined use increases the risk of torsades de pointes. The risk is greater with electrolyte disturbances, bradycardia or underlying heart disease.
How serious is the interaction between Chlorpromazine and Dasatinib?
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 and correct potassium and magnesium before starting. Repeat ECG monitoring during therapy, or choose a non-QT-prolonging alternative.
What other medicines interact with Chlorpromazine?
MediHelp also lists interactions of Chlorpromazine with, for example, Dofetilide, Dronedarone, Droperidol. The full list is on the Chlorpromazine page.
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