Drug interactions
Azathioprine + Belatacept
Severity: Major
Azathioprine and Belatacept: 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
Belatacept blocks T-cell costimulation and azathioprine suppresses lymphocyte proliferation. Together they increase the risk of serious infections and post-transplant lymphoproliferative disorder.
What this interaction means in plain words
Azathioprine and Belatacept 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.
Azathioprine belongs to Gastrointestinal Tract; Belatacept belongs to Miscellaneous.
Why it happens
Additive immunosuppression from costimulation blockade and purine antimetabolite effects.
What to do
Use the lowest effective doses within a specialist-directed transplant regimen. Monitor for infection, lymphoproliferative disease and blood count abnormalities.
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?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Azathioprine and Belatacept, 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 14 days on the web. No card needed.
Other interactions of Azathioprine
- Adenovirus types 4 and 7 live + Azathioprine Contraindicated
- Azathioprine + Bcg vaccine live Contraindicated
- Azathioprine + Febuxostat Contraindicated
- Azathioprine + Influenza virus vaccine quadrivalent intranasal Contraindicated
- Azathioprine + Measles mumps and rubella vaccine Contraindicated
- Azathioprine + Measles mumps and rubella vaccine live Contraindicated
Other interactions of Belatacept
Frequently asked questions
Can I take Azathioprine with Belatacept?
MediHelp rates the interaction as major. Azathioprine and Belatacept 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. Belatacept blocks T-cell costimulation and azathioprine suppresses lymphocyte proliferation. Together they increase the risk of serious infections and post-transplant lymphoproliferative disorder.
How serious is the interaction between Azathioprine and Belatacept?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Use the lowest effective doses within a specialist-directed transplant regimen. Monitor for infection, lymphoproliferative disease and blood count abnormalities.
What other medicines interact with Azathioprine?
MediHelp also lists interactions of Azathioprine with, for example, Adenovirus types 4 and 7 live, Bcg vaccine live, Febuxostat. The full list is on the Azathioprine 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.
