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Drug interactions

Baricitinib + Oxaprozin

Severity: Moderate

Baricitinib and Oxaprozin: moderate 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

Oxaprozin may raise baricitinib exposure because baricitinib is cleared in part by renal tubular transport through OAT3. Higher levels could increase the risk of baricitinib adverse effects such as infection and cytopenias.

What this interaction means in plain words

Baricitinib and Oxaprozin can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.

Baricitinib belongs to Musculoskeletal; Oxaprozin belongs to Musculoskeletal.

Evidence level: Low

Why it happens

Inhibition of organic anion transporter 3 mediated renal secretion of baricitinib, although NSAIDs are weaker inhibitors than probenecid.

What to do

Monitor for infection and haematological abnormalities when oxaprozin is used with baricitinib. Reduce the baricitinib dose only if a strong OAT3 inhibitor is added as labeling advises, and otherwise keep NSAID use to the lowest effective dose.

What to ask your pharmacist

  • Should I take them at different times of day?
  • Does the dose of either medicine need to change?
  • Is there anything I should avoid, such as alcohol or certain foods, while on both?

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 Oxaprozin?

MediHelp rates the interaction as moderate. Baricitinib and Oxaprozin can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Oxaprozin may raise baricitinib exposure because baricitinib is cleared in part by renal tubular transport through OAT3. Higher levels could increase the risk of baricitinib adverse effects such as infection and cytopenias.

How serious is the interaction between Baricitinib and Oxaprozin?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor for infection and haematological abnormalities when oxaprozin is used with baricitinib. Reduce the baricitinib dose only if a strong OAT3 inhibitor is added as labeling advises, and otherwise keep NSAID use to the lowest effective dose.

What other medicines interact with Oxaprozin?

MediHelp also lists interactions of Oxaprozin with, for example, Ketorolac intranasal, Ketorolac, Aceclofenac. The full list is on the Oxaprozin page.

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