Recall of T3 tablets — 5 mcg. by Paddock Laboratories
A huge discovery over the last few years by thyroid patients is the widespread problem of high levels of Reverse T3, aka RT3, in many patients. And those thyroid patients have to use a T3-only product for awhile to lower the high RT3, which comes from the T4 in desiccated thyroid.
Higher levels of RT3 can occur in the presence of adrenal fatigue, low B12, low ferritin, and other issues, all which need treatment to stop the RT3 problem. And in case you are one who is on the Paddock brand of T3, this comes from the FDA this week:
PRODUCT
Liothyronine Sodium Tablets, USP 5 mcg, RX only, Net contents 100 tablets, NDC0574-0220 – 01, UPC code (01) 00305740220016. Recall # D-695‑2010
CODE
Lot # 9C548
RECALLING FIRM/MANUFACTURER
Recalling Firm: Paddock Laboratories, Inc., Minneapolis, MN, by letter dated May 18, 2010.
Manufacturer: Metrics Inc., Greenville, NC. Firm initiated recall is ongoing.
REASON
The recall is being conducted due to a stability failure at the 12 month timepoint; the assay value of this lot was found to be sub-potent.
VOLUME OF PRODUCT IN COMMERCE
11,064 bottles
DISTRIBUTION
Nationwide including DC and PR
- Want to learn more about RT3 and the problems it can cause you?? You can read about it here on STTM’s Reverse T3 page, plus more details in the STTM book chapter on T3.
- Like being informed?? Go directly to the STTM blog page and sign up for notifications on the left beneath the links.
- Need other thyroid patients to talk to? Go to the Talk to Others page.
- Have questions about what thyroid patients have learned? Check out the newest Question and Answers page.

The news this morning about Oprah made me pause.
Yes, we’ve all heard about T4 (the thyroid storage hormone) and T3 (the active thyroid hormone which rids us of hypothyroid symptoms). We’ve learned that the body not only converts T4 to T3, it also provides some of T3 directly. The latter fact is why patients have found