Drug interactions
Dasatinib + Rifampin
Severity: Major
Dasatinib and Rifampin: 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
Rifampin strongly induces CYP3A4 and markedly lowers dasatinib plasma concentrations. This can lead to loss of leukemia control and treatment failure.
What this interaction means in plain words
Dasatinib and Rifampin 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.
Why it happens
Induction of CYP3A4 by rifampin, accelerating dasatinib metabolism.
What to do
Avoid the combination and choose an alternative antimycobacterial agent if possible. If rifampin is essential, dasatinib dose escalation with close monitoring of response and toxicity is needed.
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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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 Dasatinib with Rifampin?
MediHelp rates the interaction as major. Dasatinib and Rifampin 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. Rifampin strongly induces CYP3A4 and markedly lowers dasatinib plasma concentrations. This can lead to loss of leukemia control and treatment failure.
How serious is the interaction between Dasatinib and Rifampin?
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 the combination and choose an alternative antimycobacterial agent if possible. If rifampin is essential, dasatinib dose escalation with close monitoring of response and toxicity is needed.
What other medicines interact with Dasatinib?
MediHelp also lists interactions of Dasatinib with, for example, Saquinavir, Thioridazine, Adagrasib. The full list is on the Dasatinib page.
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