Drug interactions
Baricitinib + Tofacitinib
Severity: Contraindicated
Baricitinib and Tofacitinib: contraindicated 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
Two JAK inhibitors given together provide duplicate immunosuppression with no established added benefit. The risk of serious infection and other JAK-related adverse effects increases.
What this interaction means in plain words
Baricitinib and Tofacitinib are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two.
Baricitinib belongs to Musculoskeletal; Tofacitinib belongs to Musculoskeletal.
Why it happens
Duplicate JAK inhibition causing additive immunosuppression.
What to do
Do not use two JAK inhibitors together; select a single agent. If switching, stop one before starting the other.
What to ask your pharmacist
- Is there an alternative to one of these two medicines for me?
- If both are essential, who is monitoring me and how often?
- Which symptoms mean I should stop and seek help straight away?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Baricitinib and Tofacitinib, 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 Tofacitinib
- Cladribine + Tofacitinib Contraindicated
- Tofacitinib + Upadacitinib Contraindicated
- Abatacept + Tofacitinib Major
- Anti-thymocyte + Tofacitinib Major
- Antithymocyte globulin equine + Tofacitinib Major
- Antithymocyte globulin rabbit + Tofacitinib Major
Other interactions of Baricitinib
- Adenovirus types 4 and 7 live + Baricitinib Contraindicated
- Baricitinib + Bcg vaccine live Contraindicated
- Baricitinib + Upadacitinib Contraindicated
- Abatacept + Baricitinib Major
- Adalimumab + Baricitinib Major
- Ado-trastuzumab + Baricitinib Major
Frequently asked questions
Can I take Baricitinib with Tofacitinib?
MediHelp rates the interaction as contraindicated. Baricitinib and Tofacitinib are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two. Two JAK inhibitors given together provide duplicate immunosuppression with no established added benefit. The risk of serious infection and other JAK-related adverse effects increases.
How serious is the interaction between Baricitinib and Tofacitinib?
MediHelp rates it contraindicated, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Do not use two JAK inhibitors together; select a single agent. If switching, stop one before starting the other.
What other medicines interact with Tofacitinib?
MediHelp also lists interactions of Tofacitinib with, for example, Cladribine, Upadacitinib, Abatacept. The full list is on the Tofacitinib 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.
