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Can I take Levothyroxine and Turmeric together?

Drug interaction guide

Turmeric may interfere with how your body absorbs levothyroxine and could potentially affect your thyroid hormone levels. This might make your thyroid medication less effective or, in some cases, cause your thyroid levels to become unstable.

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Why this happens

Turmeric contains a compound called curcumin. There is some evidence that curcumin can interfere with the absorption of medications in the gut. Additionally, turmeric may have slight effects on thyroid function itself or the way thyroid hormones are converted in the body, though more research is needed to confirm the exact process.

You should ideally take your levothyroxine on an empty stomach, at least 30 to 60 minutes before breakfast or any other supplements. If you wish to take turmeric, do so at a different time of day (at least 4 hours apart). If you start taking turmeric regularly, inform your doctor so they can monitor your thyroid levels (TSH) and adjust your dose if necessary.

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Taking multiple medicines? Our Medicines Interaction Checker helps you check whether your prescriptions, over-the-counter medicines, and supplements are safe to take together. Simply search for your medicines to see potential interactions and what to do about them.

Disclaimer

This information is for general educational purposes only and should not be relied upon as a substitute for professional medical advice. Always consult your GP, pharmacist, or another qualified healthcare professional before making decisions about your medications. Individual circumstances may vary, and only a healthcare professional who knows your medical history can provide personalised guidance.

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Article history

The information on this page is written and peer reviewed by qualified clinicians.

  • 14 Mar 2026 | Originally published
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