Imatinib and Rifampicin: Drug Interaction Guide
Quick answer: This is a major interaction — avoid combining Imatinib and Rifampicin unless specifically directed by your doctor.
How Imatinib interacts with Rifampicin
Rifampicin is a potent inducer of CYP3A4, reducing imatinib AUC by approximately 70% and potentially causing therapeutic failure in chronic myeloid leukemia.
What you should do
Avoid combination. Use a non-inducing antimicrobial alternative or, if essential, increase imatinib dose by at least 50% with response monitoring.
Key facts
Severity
Major — avoid combination
Mechanism
Rifampicin is a potent inducer of CYP3A4, reducing imatinib AUC by approximately 70% and potentially causing therapeutic...
Action
Avoid combination. Use a non-inducing antimicrobial alternative or, if essential, increase imatinib dose by at least 50%...
Frequently asked questions
Can I take Imatinib and Rifampicin together?
No — this combination should generally be avoided. Avoid combination. Use a non-inducing antimicrobial alternative or, if essential, increase imatinib dose by at least 50% with response monitoring.
What is the severity of this interaction?
The interaction between Imatinib and Rifampicin is classified as Major — avoid combination. Rifampicin is a potent inducer of CYP3A4, reducing imatinib AUC by approximately 70% and potentially causing therapeutic failure in chronic myeloid leukemia.
What should I do if I'm prescribed both?
Avoid combination. Use a non-inducing antimicrobial alternative or, if essential, increase imatinib dose by at least 50% with response monitoring. Always consult your prescribing clinician — do not stop or change medications without medical guidance.
Last reviewed: by iMedic Medical Editorial Team. Our editorial process.