Can You Take Vitamin D and Warfarin Together?

No documented interaction was identified between vitamin D and warfarin in the sources reviewed.

No documented interaction identifiedEvidence: Moderate

What the interaction means

Warfarin's FDA label does not mention vitamin D (its only 'vitamin D' hits are taxonomy-list terms like 'PROVITAMIN D2 COMPOUND'). MedlinePlus's vitamin D page does not mention warfarin.

No documented interaction was identified in the authoritative sources reviewed. This is not a guarantee that no interaction exists for every dose, formulation, or individual -- it means the sources checked did not document one.

Practical context

Both substances' own current authoritative sources were checked directly, full text, in both directions; the taxonomy-list mentions were deliberately not treated as a real interaction claim.

What the sources say

Last reviewed 2026-08-23

Medical information disclaimer: this information is general and educational. It does not diagnose conditions, prescribe treatment, or determine whether a combination is safe for you personally. Follow your prescription label and ask a pharmacist or clinician before starting, stopping, or combining products. Full disclaimer.

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