Drug interactions
Brentuximab + Efavirenz
Severity: Minor
Brentuximab and Efavirenz: 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
Efavirenz induces CYP3A4 and may reduce exposure to MMAE, the cytotoxic component of brentuximab vedotin. This could modestly reduce efficacy.
What this interaction means in plain words
Brentuximab and Efavirenz 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; Efavirenz belongs to Anti Virals.
Why it happens
CYP3A4 induction increases MMAE clearance.
What to do
No dose change is required; monitor tumor response and HIV regimen as usual.
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 Efavirenz, 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 Efavirenz
- Cobimetinib + Efavirenz Contraindicated
- Dienogest / estradiol valerate + Efavirenz Contraindicated
- Dihydroergotamine intranasal + Efavirenz Contraindicated
- Dihydroergotamine + Efavirenz Contraindicated
- Doravirine + Efavirenz Contraindicated
- Efavirenz + Elbasvir / grazoprevir Contraindicated
Frequently asked questions
Can I take Brentuximab with Efavirenz?
MediHelp rates the interaction as minor. Brentuximab and Efavirenz have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Efavirenz induces CYP3A4 and may reduce exposure to MMAE, the cytotoxic component of brentuximab vedotin. This could modestly reduce efficacy.
How serious is the interaction between Brentuximab and Efavirenz?
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 dose change is required; monitor tumor response and HIV regimen as usual.
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.
