Drug interactions
Pralatrexate + Tofacitinib
Severity: Major
Pralatrexate and Tofacitinib: 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
Pralatrexate is an antifolate causing myelosuppression and mucositis, and tofacitinib adds immunosuppression. The combination increases the risk of cytopenias and serious infection.
What this interaction means in plain words
Pralatrexate and Tofacitinib 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.
Pralatrexate belongs to Oncology; Tofacitinib belongs to Musculoskeletal.
Why it happens
Additive pharmacodynamic immunosuppression and bone marrow suppression.
What to do
Avoid combining where possible and hold tofacitinib during pralatrexate therapy. Monitor blood counts and infection signs if used together.
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?
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Other interactions of Tofacitinib
- Baricitinib + Tofacitinib Contraindicated
- Cladribine + Tofacitinib Contraindicated
- Tofacitinib + Upadacitinib Contraindicated
- Abatacept + Tofacitinib Major
- Anti-thymocyte + Tofacitinib Major
- Antithymocyte globulin equine + Tofacitinib Major
Other interactions of Pralatrexate
Frequently asked questions
Can I take Pralatrexate with Tofacitinib?
MediHelp rates the interaction as major. Pralatrexate and Tofacitinib 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. Pralatrexate is an antifolate causing myelosuppression and mucositis, and tofacitinib adds immunosuppression. The combination increases the risk of cytopenias and serious infection.
How serious is the interaction between Pralatrexate and Tofacitinib?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid combining where possible and hold tofacitinib during pralatrexate therapy. Monitor blood counts and infection signs if used together.
What other medicines interact with Tofacitinib?
MediHelp also lists interactions of Tofacitinib with, for example, Baricitinib, Cladribine, Upadacitinib. The full list is on the Tofacitinib page.
Full monographs, dosing and an interaction checker in the MediHelp app
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