Drug interactions
Nabumetone + Tolfenamic acid
Severity: Major
Nabumetone and Tolfenamic acid: 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
Combining two systemic NSAIDs adds no proven therapeutic benefit and increases the risk of gastrointestinal ulceration and bleeding, renal injury, and fluid retention. Hyperkalemia and cardiovascular adverse effects may also be more likely.
What this interaction means in plain words
Nabumetone and Tolfenamic acid 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.
Nabumetone belongs to Musculoskeletal; Tolfenamic acid belongs to Musculoskeletal.
Why it happens
Additive inhibition of cyclooxygenase, reducing protective gastric and renal prostaglandins and impairing platelet function.
What to do
Avoid concurrent use of two NSAIDs and keep a single agent at the lowest effective dose. If a switch is made, stop the first drug before starting the second.
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 Nabumetone
- Ketorolac intranasal + Nabumetone Contraindicated
- Ketorolac + Nabumetone Contraindicated
- Aceclofenac + Nabumetone Major
- Acemetacin + Nabumetone Major
- Acetylsalicylic acid + Nabumetone Major
- Alteplase + Nabumetone Major
Other interactions of Tolfenamic acid
Frequently asked questions
Can I take Nabumetone with Tolfenamic acid?
MediHelp rates the interaction as major. Nabumetone and Tolfenamic acid 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. Combining two systemic NSAIDs adds no proven therapeutic benefit and increases the risk of gastrointestinal ulceration and bleeding, renal injury, and fluid retention. Hyperkalemia and cardiovascular adverse effects may also be more likely.
How serious is the interaction between Nabumetone and Tolfenamic acid?
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 concurrent use of two NSAIDs and keep a single agent at the lowest effective dose. If a switch is made, stop the first drug before starting the second.
What other medicines interact with Nabumetone?
MediHelp also lists interactions of Nabumetone with, for example, Ketorolac intranasal, Ketorolac, Aceclofenac. The full list is on the Nabumetone page.
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