Vitamin K Interactions

1 documented interaction — 1 warning, 0 beneficial pairs.

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Interaction warnings

Vitamin K + Warfarin

high

Vitamin K directly antagonizes the anticoagulant effect of warfarin by serving as a cofactor for the gamma-carboxylation of clotting factors II, VII, IX, and X, thereby reducing warfarin's efficacy.

Related ingredients

Ingredients commonly checked alongside Vitamin K.

Warfarin(1)
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