Can I Take These?

Can You Take Levothyroxine and Probiotics Together?

No documented interaction was identified between probiotics and levothyroxine in the sources reviewed.

No documented interaction identifiedEvidence: Moderate

See the full Levothyroxine page and Probiotics page for other reviewed interactions and reference information.

What the interaction means

NCCIH's probiotics page's only medication-related discussion anywhere is research on reducing antibiotic-associated diarrhea -- it names no other drug and does not mention levothyroxine. Levothyroxine's own extensive drug-interaction section does not name probiotics.

No documented interaction between Levothyroxine and Probiotics 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

NCCIH's probiotics page and levothyroxine's FDA label were checked directly, full text, in both directions. Levothyroxine is not an antibiotic, so probiotics' one documented medication-related finding does not apply here.

What the sources say

Levothyroxine Sodium Capsules — FDA Prescribing Information — YARAL Pharma, Inc. (via DailyMed, U.S. National Library of Medicine)Probiotics: What You Need To Know — National Center for Complementary and Integrative Health (NIH)

Last reviewed 2026-08-25

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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