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Drug interactions

Diclofenac + Ketoprofen

Severity: Major

Diclofenac and Ketoprofen: major interaction.

Last updated Sources: US FDA label

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

Using two systemic NSAIDs together offers no added efficacy and increases the risk of GI bleeding, kidney injury, fluid retention and cardiovascular events.

What this interaction means in plain words

Diclofenac and Ketoprofen 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.

Diclofenac belongs to Musculoskeletal; Ketoprofen belongs to Musculoskeletal.

Evidence level: Moderate

Why it happens

Additive cyclooxygenase inhibition with duplicated prostaglandin-related toxicity.

What to do

Avoid combining NSAIDs and use a single agent at the lowest effective dose. If exposure occurred, monitor for GI bleeding and renal function.

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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References

Frequently asked questions

Can I take Diclofenac with Ketoprofen?

MediHelp rates the interaction as major. Diclofenac and Ketoprofen 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. Using two systemic NSAIDs together offers no added efficacy and increases the risk of GI bleeding, kidney injury, fluid retention and cardiovascular events.

How serious is the interaction between Diclofenac and Ketoprofen?

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 NSAIDs and use a single agent at the lowest effective dose. If exposure occurred, monitor for GI bleeding and renal function.

What other medicines interact with Ketoprofen?

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

Full monographs, dosing and an interaction checker in the MediHelp app

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