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Medicines phenindioneQuestion & answer

phenindione · Medicine question

Why does phenindione require INR blood tests?

iatroX medicinesPublished 21 August 2026Reviewed 21 August 2026

The answer

Answer

The INR shows how long blood takes to clot and helps the anticoagulation service keep phenindione's effect within the intended range.

Sources for this answer

Dindevan 25mg Tablets / Phenindione 25mg Tabletsemc · SmPC Current selected SmPC · Version 13
NHSNHS · NHS medicine guidance

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phenindione

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