Can You Take Levothyroxine and Warfarin Together?
No documented interaction was identified between levothyroxine and warfarin in the sources reviewed.
What the interaction means
Both labels' only cross-mentions are 'WARFARIN REVERSAL AGENT' inside the generic pharmacologic-class taxonomy dropdown, not a prose 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 FDA labels 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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- Warfarin and LisinoprilInsufficient evidence
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- Warfarin and OmeprazoleUse caution
- Warfarin and Vitamin B12Insufficient evidence
- Warfarin and DoxycyclineInsufficient evidence
- Warfarin and CopperInsufficient evidence
- Warfarin and MetforminInsufficient evidence
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- Warfarin and SpironolactoneInsufficient evidence
- Warfarin and CaffeineUse caution
- Warfarin and AtorvastatinUse caution
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