Drug interactions
Brentuximab + Rifabutin
Severity: Minor
Brentuximab and Rifabutin: minor 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
Rifabutin induces CYP3A4 and may reduce MMAE exposure from brentuximab vedotin, possibly weakening efficacy. Rifabutin is a weaker inducer than rifampin, so the effect is likely modest.
What this interaction means in plain words
Brentuximab and Rifabutin have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Brentuximab belongs to Oncology; Rifabutin belongs to Anti Bacterial.
Why it happens
CYP3A4 induction by rifabutin may increase MMAE clearance.
What to do
No routine adjustment is needed; monitor treatment response. Be aware that stronger inducers like rifampin have a larger effect.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Brentuximab and Rifabutin, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 7 days on the web. No card needed.
Other interactions of Brentuximab
- Bleomycin + Brentuximab Contraindicated
- Brentuximab + Dengue vaccine Major
- Brentuximab + Etrasimod Major
- Brentuximab + Idelalisib Major
- Brentuximab + Levoketoconazole Major
- Brentuximab + Nefazodone Major
Other interactions of Rifabutin
- Cabotegravir + Rifabutin Contraindicated
- Lorlatinib + Rifabutin Contraindicated
- Rifabutin + Voriconazole Contraindicated
- Apixaban + Rifabutin Major
- Axitinib + Rifabutin Major
- Brexpiprazole + Rifabutin Major
Frequently asked questions
Can I take Brentuximab with Rifabutin?
MediHelp rates the interaction as minor. Brentuximab and Rifabutin have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Rifabutin induces CYP3A4 and may reduce MMAE exposure from brentuximab vedotin, possibly weakening efficacy. Rifabutin is a weaker inducer than rifampin, so the effect is likely modest.
How serious is the interaction between Brentuximab and Rifabutin?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No routine adjustment is needed; monitor treatment response. Be aware that stronger inducers like rifampin have a larger effect.
What other medicines interact with Brentuximab?
MediHelp also lists interactions of Brentuximab with, for example, Bleomycin, Dengue vaccine, Etrasimod. The full list is on the Brentuximab page.
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.
