Armour Thyroid Availability – FDA Update
Many patients searching for Armour Thyroid availability in the UK have been concerned about recent FDA actions involving natural desiccated thyroid (NDT) medications. The FDA has stated that Armour Thyroid and NP Thyroid are considered unapproved drugs in the United States because they have not undergone modern safety and efficacy review. This raised fears that these medications might be removed from the market.
Recent updates from manufacturers, however, provide a more reassuring picture.
What the FDA Has Said About Armour Thyroid
On 6 August 2025, the FDA sent warning letters to manufacturers and distributors of Armour Thyroid. This medication, made from pig thyroid glands, contains both T4 (thyroxine) and T3 (triiodothyronine). Since it has not undergone modern safety and efficacy reviews, the FDA plans to enforce its removal in 12 months. While Armour Thyroid UK availability remains for now, the long-term future is uncertain.

New Developments: Armour Thyroid & NP Thyroid
AbbVie’s Position on Armour Thyroid
AbbVie, the manufacturer of Armour Thyroid, has publicly stated that Armour Thyroid is not being discontinued. They have indicated that they intend to keep the product on the market and are working with regulators to ensure continued availability.
While the FDA has required that Armour Thyroid be registered as a biologic by 2029, AbbVie has not signalled any intention to withdraw the medication. Instead, their statements suggest a commitment to maintaining supply.
NP Thyroid’s Path Toward Approval
The manufacturer of NP Thyroid has taken a different but encouraging approach. A sister company is actively pursuing FDA approval for NP Thyroid under the modern regulatory pathway.
If successful, NP Thyroid could become the first fully FDA‑approved NDT product, which would strengthen long‑term availability and potentially set a precedent for other NDT medicines.
These developments indicate that the future of NDT medications may be more stable than originally feared.
Our Recommendation for Patients on Armour Thyroid
If you currently take Armour Thyroid, there is no need for immediate concern, but planning ahead is sensible.
- Discuss your treatment plan with your healthcare provider. Ensure you have an alternative option in case supply becomes limited.
- Maintain a reasonable supply. Armour Thyroid typically has a shelf life of over one year. Keeping a one‑year supply can help reduce anxiety about potential shortages.
- Consider liothyronine (T3) therapy if levothyroxine has not worked for you. Research shows that liothyronine can effectively normalise thyroid hormone levels with minimal side effects. While UK prices can be high, international suppliers often offer more affordable options.
- Expect continued availability of NDT products. With Armour Thyroid remaining on the market and NP Thyroid pursuing approval, long‑term access to NDT appears more secure than previously thought.
Stay Updated on Armour Thyroid UK Availability
We will continue to monitor regulatory developments and update this page as new information becomes available. For official updates, visit the FDA thyroid medication updates page.