Can You Take Melatonin and Warfarin Together?
No documented interaction was identified between melatonin and warfarin in the sources reviewed.
What the interaction means
NCCIH's melatonin page does not mention warfarin anywhere. Warfarin's FDA label's only "melatonin" occurrence is "MELATONIN RECEPTOR AGONIST" inside its generic pharmacologic-class taxonomy list -- a reference vocabulary entry, not an interaction statement.
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 label's taxonomy-list mention was 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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