Abrocitinib and Ensartinib: Interaction Details
AI-assisted, pharmacist-reviewed · AI content regenerated Jul 11, 2026 · Source data updated Jul 10, 2026 · Sources: FDA labeling, DDInter 2.0, cited literature
Abrocitinib
Ensartinib
No brand names on record
How we grade severity & evidence
Severity levels
- Contraindicated: These should generally not be used together.
- Major: Potentially serious — often needs a change or close monitoring.
- Moderate: Can be significant — usually manageable with monitoring.
- Minor: Usually limited clinical impact.
Evidence grades
- Established: Well documented — supported by controlled studies or strong clinical data.
- Probable: Good supporting evidence, though not definitively proven.
- Suspected: Some evidence suggests this interaction, but it is not well established.
- Possible: Limited or conflicting evidence; the interaction may occur.
- Theoretical: Predicted from the drugs' pharmacology; not yet confirmed in people.
Ratings come from the documented interaction literature and are reviewed by a pharmacist. They describe the documented risk of the combination, not what will necessarily happen to you — your dose, timing, and health picture all matter.
Taking abrocitinib (Cibinqo) with ensartinib needs a close look. Abrocitinib can block a 'pump' in your body called P-gp that normally helps move ensartinib out. When that pump is slowed down, more ensartinib can build up in your blood than expected. That extra amount can raise your chance of side effects from the ensartinib.
The good news is that this is something your care team can plan for. Please don't stop or change either medicine on your own. Just let your pharmacist or doctor know you're taking both so they can decide the safest approach for you.
Effect: Increased ensartinib exposure (higher AUC/Cmax) with concomitant abrocitinib.
Mechanism: Abrocitinib inhibits P-glycoprotein (P-gp)-mediated efflux of ensartinib, reducing its clearance. Ensartinib is the affected object drug; neither agent's effect depends on prodrug activation here.
- Direction: Elevated ensartinib levels, increased toxicity risk.
- Severity/Evidence: Major; probable substantiation.
- Onset: Unspecified.
- Management: Avoid concomitant use per labeling. If unavoidable, individualize and monitor closely for ensartinib-related adverse effects.
What happens
Increased ensartinib exposure
Interaction Deep Dive
Because P-gp inhibitors can raise ensartinib exposure, ensartinib should not be taken together with these agents1.
Why it happens (mechanism)
Inhibition of P-gp-mediated efflux transport of ensartinib
How to manage this interaction
What your care team may do:
- The documented guidance is to avoid using ensartinib together with a P-gp inhibitor like abrocitinib when possible.
- If both are truly needed, your team may adjust and individualize your dosing and monitor you more closely for ensartinib side effects.
What you should do:
- Keep taking both exactly as prescribed unless your prescriber tells you otherwise.
- Tell your pharmacist and doctor you take both so they can pick the safest option or watch you more carefully.
Management is individual — confirm any change with your pharmacist or prescriber.
Common questions
Can I take Abrocitinib and Ensartinib together?
Abrocitinib can raise ensartinib levels by blocking P-gp, which increases the risk of ensartinib side effects, so this combination is generally avoided. Do not change either medicine yourself; check with your pharmacist or doctor. Always confirm with your pharmacist or prescriber before making any change.
How serious is the Abrocitinib and Ensartinib interaction?
It is rated major. Potentially serious — often needs a change or close monitoring.
How quickly could this interaction happen?
The documented onset is "unspecified". The timing of this interaction is not well characterized.
How is the Abrocitinib and Ensartinib interaction managed?
What your care team may do: The documented guidance is to avoid using ensartinib together with a P-gp inhibitor like abrocitinib when possible. If both are truly needed, your team may adjust and individualize your dosing and monitor you more closely for ensartinib side effects. What you should do: Keep taking both exactly as prescribed unless your prescriber tells you otherwise. Tell your pharmaci… Management is individual — always follow your own care team's guidance.
How strong is the evidence for this interaction?
The evidence is graded "probable". Good supporting evidence, though not definitively proven.
Questions for your pharmacist
- Does my dose of Abrocitinib or Ensartinib need adjusting while I take them together?
- What symptoms should prompt me to call you or my prescriber right away?
- Does the timing of my doses matter for this combination?
- Is there a safer alternative to one of these medications for me?
References (1)
- Product Information: ENSACOVE(TM) oral capsules, ensartinib oral capsules. Xcovery Holdings, Inc (per FDA), Miami, FL, 2024. DailyMed
Keep reading about Abrocitinib
Keep reading about Ensartinib
These medications also interact with supplements
Prescription drugs aren't the whole picture — herbal and dietary supplements can interact with them too. From the evidence-graded Natural Medicines database:
major · moderate · minor — check everything you take with our drug–supplement interaction checker.
Check another combination
Our instant two-drug interaction checker is almost here.
Still have questions about this combination?
Every question gets a real answer from a licensed pharmacist — free, and usually within a day.
Ask the pharmacist