The Claim

In adults with Graves' disease, the addition of Haizao Yuhu Decoction to methimazole is associated with a greater reduction in free thyroxine (FT4) and free triiodothyronine (FT3) levels at 4 weeks compared to methimazole alone, with median differences of 16.67 pmol/L vs 9.82 pmol/L for FT4 and 5.32 pmol/L vs 3.46 pmol/L for FT3.

Source: Short-Term Efficacy and Safety of Haizao Yuhu Decoction Plus Methimazole versus Methimazole Monotherapy for Graves’ Disease: A Prospective Study Using Propensity Score-Matching

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
64score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Correlation
1 study reviewed
In plain English

In adults with Graves' disease, taking Haizao Yuhu Decoction along with methimazole results in a larger decrease in free thyroxine and free triiodothyronine levels after 4 weeks than taking methimazole alone, with measured median differences of 16.67 pmol/L versus 9.82 pmol/L for FT4 and 5.32 pmol/L versus 3.46 pmol/L for FT3.

See the scientific wording

In adults with Graves' disease, adding Haizao Yuhu Decoction to methimazole is associated with a greater reduction in free thyroxine (FT4) and free triiodothyronine (FT3) levels at 4 weeks compared to methimazole alone, with median differences of 16.67 pmol/L vs 9.82 pmol/L for FT4 and 5.32 pmol/L vs 3.46 pmol/L for FT3, suggesting faster normalization of thyroid hormone levels.

Why this might work

High iodine from the herbal formula blocks the thyroid's ability to take up iodine and make hormones, while also cutting off blood flow to the gland so it gets fewer building blocks. At the same time, compounds in the formula reduce inflammation and calm the immune system, so the thyroid is attacked less. Together, this causes thyroid hormone levels to drop faster than with medication alone.

Verified mechanismbased on 1 study

What the research says

1 study

  1. Study: Short-Term Efficacy and Safety of Haizao Yuhu Decoction Plus Methimazole versus Methimazole Monotherapy for Graves’ Disease: A Prospective Study Using Propensity Score-Matching

    This study found that people with Graves' disease who took a traditional Chinese herbal medicine along with their regular thyroid drug had bigger drops in their thyroid hormone levels after four weeks than those who took only the regular drug. So yes, the herbal mix helped more.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

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