Why It’s Legal For You To Buy Thyroid-S

This is a fascinating subject of much misinformation, speculation, conjecture, and debate, so we made this page to attempt to clarify the current situation. It is perfectly legal for you to buy Thyroid-S from Thailand, and here’s why.

First, there is an excellent discussion about this on the ERFA-Thyroid (Canada) website:


In case that page disappears, we have cached it on October 22, 2011 HERE. The interesting part is near the bottom of that page where they check with the US FDA and find that FDA forms are not required.

The salient points are:

  • All the natural desiccated thyroid (NDT) medication sold in the US is NOT FDA approved (and this includes Armour and ERFA-Thyroid).
  • US FDA forms are not required.
  • ERFA-Canada requires a prescription because NDT is classified as a Prescription Drug in Canada.
  • NDT is a non-prescription dietary supplement in Thailand (and not a prescription drug), so we can legally ship from Thailand with no prescription.

Furthermore, the US Food and Drug Administration (USFDA) maintains a list of medications that are “approved” and therefore NOT allowed to be imported without a license. You can search for T4 (levothyroxine sodium), and you will see that there are many medications listed which contain T4, but Thryroid-S and Thiroyd are not on the list. This means that imports of these tablets are not restricted by the USFDA. If they were on this list, you could not legally import them without a license.

USFDA Orange Book – USFDA searchable list of “approved” medications (and “approved” means that they CANNOT be imported without a license).

Next, we should consider if there are any duties or other issues with US Customs for importing this product. Virtually all countries, including the United States, base their tariff schedules on the Harmonized Tariff Schedule (HTS), making it easier to classify imports, determine applicable duty rate, if any, and conduct international trade. A check of the HTS shows that Thyroid-S and Thiroyd would be classified as “Extracts of Animal Glands”.  US Customs import duty rate on this product is 0%. Screen shot of the HTS classification is HERE,  and HTS of the US Customs is available online HERE.

And finally, it is prudent to verify that the active ingredients of these tablets are not prohibited or restricted substances.  A quick check of the HTS shows that T4 (levothyroxine sodium) is not prohibited or restricted, it has a CAS registry number, and it can be imported duty free into the USA in any quantity.  Screen shot of the HTS for T4 is HERE.

We include a signed Customs Declaration with every shipment, and under no circumstances that we can think of should your shipment have any problem at Customs.

We hope this clarifies the current situation.

Disclaimer: Please note that our advice represents the best information in our possession, but in no way is it meant to replace recommendations by your physician or legal counsel. Our suggestions are not intended as a substitute for the diagnosis, treatment and/or advice of a qualified licensed professional and/or expert legal counsel.

6 Responses to “Why It’s Legal For You To Buy Thyroid-S”

  1. Marc B. says:

    Umm…OK. All well and good. I want to order 1,000 of the Thiroyd, but I can no longer find your link to Amazon. How do I order from this website? Thanks!!

  2. I have been steadily gaining weight for the last year. I have already gained 30 pounds in one year. My TSH says I am normal but I know I am not. I have shortness of breath and extreme fatigue. I have never been overweight in my life. Now at age 62 suddenly I am overweight. Hoping this product will work. I am unable to find the ingredients on the website. That would be really good if you could post it in a place that is easy to see. Thanks.

    • na says:

      I am not a doctor.

      62, fatigue, shortness of breath, could be anything. I would demand your doctor give you another avenue to explore, or switch doctors.

      Check out “The TSH Reference Range Wars”, and find out _where_ your FT3 and FT4 are. Even if your numbers are “in range”, you can be hypothyroid. Ask about TPOab and TGab antibody tests. Suggest your doctor investigate or rule out subclinical hypothyroidism.

      If your TSH is below 2*, I wouldn’t dare take this. You’d really be asking for trouble. Just because you have hypothyroid symptoms, doesn’t mean you are.

      *(anything below 3 is not advisable by anyone. Most doctors won’t prescribe unless you’re at least 5, leaving a gap of untreated patients of unknown size.)

    • Shauna says:

      Make sure the Doc. checks your TPO-AB (its an antibodies test) most big labs – like Kaiser, will NOT test this unless you specifically ask! One of the most common forms of Hypothy. is due to an immune disorder, that will not show up on a regular panel. I suffered for 3 years, lost almost all my hair, gained a ton of weight, was down to 900 calories and running 2 miles everyday only to gain about 2lbs a week, until I finally found the TPO-AB test and made my doc. run it – my value was 840! Normal is under 30. Make your doc. run more tests. Be your own advocate!

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