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Medicines fondaparinux sodiumQuestion & answer

fondaparinux sodium · Medicine question

Does it require INR monitoring?

iatroX medicinesPublished 20 August 2026Reviewed 20 August 2026

The answer

Answer

No routine INR monitoring is used to measure its effect. Specialist anti-Xa testing may be used in selected circumstances.

Sources for this answer

Arixtra Fondaparinux sodium solution for injection 1.5 mg/ 0.3 mlemc · SmPC Current selected SmPC · Version 7
NHSNHS · NHS medicine guidance

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The full medicine guide

fondaparinux sodium

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