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Drug interactions

Horse chestnut seed + Piroxicam

Severity: Minor

Horse chestnut seed and Piroxicam: minor 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

Horse chestnut contains aescin and coumarin-type compounds that may have anticoagulant effects, theoretically increasing bleeding with piroxicam. Clinical evidence is scant.

What this interaction means in plain words

Horse chestnut seed and Piroxicam have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.

Evidence level: Low

Why it happens

Possible weak anticoagulant or antiplatelet effect adding to NSAID platelet inhibition.

What to do

Advise patients to report bleeding or bruising; avoid the supplement if other bleeding risk factors are present.

What to ask your pharmacist

  • Is there anything I should notice while taking both?
  • Do I need to tell my doctor at the next visit?

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 Horse chestnut seed with Piroxicam?

MediHelp rates the interaction as minor. Horse chestnut seed and Piroxicam have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Horse chestnut contains aescin and coumarin-type compounds that may have anticoagulant effects, theoretically increasing bleeding with piroxicam. Clinical evidence is scant.

How serious is the interaction between Horse chestnut seed and Piroxicam?

MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Advise patients to report bleeding or bruising; avoid the supplement if other bleeding risk factors are present.

What other medicines interact with Piroxicam?

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