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Drug interactions

Baricitinib + Tocilizumab

Severity: Major

Baricitinib and Tocilizumab: 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

Baricitinib is not recommended with biologic DMARDs such as tocilizumab because of added immunosuppression. The combination raises the risk of serious infections including opportunistic and tuberculous infection.

What this interaction means in plain words

Baricitinib and Tocilizumab 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.

Baricitinib belongs to Musculoskeletal; Tocilizumab belongs to Musculoskeletal.

Evidence level: Moderate

Why it happens

Additive immunosuppression from IL-6 receptor blockade and JAK inhibition.

What to do

Avoid combining these drugs and use only one for the rheumatic indication. If overlap occurs, monitor for infection and stop both if a serious infection develops.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Baricitinib with Tocilizumab?

MediHelp rates the interaction as major. Baricitinib and Tocilizumab 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. Baricitinib is not recommended with biologic DMARDs such as tocilizumab because of added immunosuppression. The combination raises the risk of serious infections including opportunistic and tuberculous infection.

How serious is the interaction between Baricitinib and Tocilizumab?

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 these drugs and use only one for the rheumatic indication. If overlap occurs, monitor for infection and stop both if a serious infection develops.

What other medicines interact with Tocilizumab?

MediHelp also lists interactions of Tocilizumab with, for example, Bcg vaccine live, Measles mumps and rubella vaccine live, Measles mumps rubella and varicella vaccine live. The full list is on the Tocilizumab 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.

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