Can I Take These?

Can You Take Magnesium and Warfarin Together?

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

No documented interaction identifiedEvidence: Moderate

What the interaction means

Warfarin's FDA label does not name magnesium among the drugs, foods, or botanicals it lists as altering INR. Magnesium's own NIH fact sheet does not name 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, in both directions.

What the sources say

Warfarin Sodium Tablets — FDA Prescribing Information — Amneal Pharmaceuticals LLC (via DailyMed, U.S. National Library of Medicine)Magnesium — 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.

Related interactions