Drug interactions
Fondaparinux + Meclofenamic acid
Severity: Major
Fondaparinux and Meclofenamic acid: 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
NSAIDs reduce platelet aggregation and can injure the gastrointestinal mucosa, adding to the anticoagulant effect of fondaparinux. Bleeding risk is increased.
What this interaction means in plain words
Fondaparinux and Meclofenamic 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.
Fondaparinux belongs to Cardiovascular; Meclofenamic acid belongs to Musculoskeletal.
Why it happens
Additive pharmacodynamic effect of NSAID platelet inhibition and mucosal injury with factor Xa inhibition.
What to do
Avoid concurrent use where possible and choose paracetamol for analgesia. If co-administered, monitor for bleeding and hemoglobin.
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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References
Other interactions of Meclofenamic acid
- Ketorolac intranasal + Meclofenamic acid Contraindicated
- Ketorolac + Meclofenamic acid Contraindicated
- Aceclofenac + Meclofenamic acid Major
- Acemetacin + Meclofenamic acid Major
- Alteplase + Meclofenamic acid Major
- Amiloride + Meclofenamic acid Major
Other interactions of Fondaparinux
- Defibrotide + Fondaparinux Contraindicated
- Fondaparinux + Ketorolac Contraindicated
- Abciximab + Fondaparinux Major
- Aceclofenac + Fondaparinux Major
- Acetylsalicylic acid + Fondaparinux Major
- Alteplase + Fondaparinux Major
Frequently asked questions
Can I take Fondaparinux with Meclofenamic acid?
MediHelp rates the interaction as major. Fondaparinux and Meclofenamic 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. NSAIDs reduce platelet aggregation and can injure the gastrointestinal mucosa, adding to the anticoagulant effect of fondaparinux. Bleeding risk is increased.
How serious is the interaction between Fondaparinux and Meclofenamic 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 where possible and choose paracetamol for analgesia. If co-administered, monitor for bleeding and hemoglobin.
What other medicines interact with Meclofenamic acid?
MediHelp also lists interactions of Meclofenamic acid with, for example, Ketorolac intranasal, Ketorolac, Aceclofenac. The full list is on the Meclofenamic acid page.
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