Can I Take These?

Can You Take Vitamin B12 and Warfarin Together?

No documented interaction was identified between vitamin B12 and warfarin in the sources reviewed.

No documented interaction identifiedEvidence: Moderate

See the full Vitamin B12 page and Warfarin page for other reviewed interactions and reference information.

What the interaction means

Warfarin's FDA label's only "vitamin B12" hit is inside its generic pharmacologic-class taxonomy dropdown, not a prose interaction statement. Vitamin B12's own NIH fact sheet does not mention warfarin.

No documented interaction between Vitamin B12 and Warfarin 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 Vitamin B12's and Warfarin's own current authoritative sources were checked directly, full text, in both directions; the taxonomy-list mention was deliberately not treated as a real interaction claim.

What the sources say

Warfarin Sodium Tablets — FDA Prescribing Information — Amneal Pharmaceuticals LLC (via DailyMed, U.S. National Library of Medicine)Vitamin B12 — Consumer — NIH Office of Dietary Supplements

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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