Nature-Throid 1 Grain Recall: CGMP Deviations
Preferred Pharmaceuticals recalls Nature-Throid 1 Grain tablets due to CGMP deviations. Check lot numbers A0220Q and K15171 for expiration date 10/31/2020.
Use caution until it’s fixed
CGMP Deviations
Contact the company
What happened, in plain English
Preferred Pharmaceuticals, Inc. is recalling specific lots of Nature-Throid 1 Grain thyroid medication due to Current Good Manufacturing Practice (CGMP) deviations. The affected products are Rx-only tablets packaged in 90-count and 100-count bottles. The recall was issued on September 2, 2020. Read more at govinfonow.com/recall/36789-nature-throid-1-grain-recall-cgmp-deviations.
Source Summary by GovInfoNow · govinfonow.com/recall/36789-nature-throid-1-grain-recall-cgmp-deviations · Updated October 11, 2026 · FDA enforcement record: FDA #D-1623-2020
Cite this page
“Nature-Throid 1 Grain Recall: CGMP Deviations.” GovInfoNow, updated October 11, 2026. https://govinfonow.com/recall/36789-nature-throid-1-grain-recall-cgmp-deviations. Based on FDA recall #D-1623-2020 (https://api.fda.gov/drug/enforcement.json?search=recall_number:%22D-1623-2020%22&limit=1).
Why it’s dangerous
The recall is based on CGMP deviations, which means the manufacturing process did not meet federal quality standards. While the specific nature of the deviation is not detailed in the record, such deviations can potentially affect the potency or purity of the medication, leading to inconsistent dosing for patients who require precise thyroid hormone levels.
Who’s affected
Patients prescribed Nature-Throid 1 Grain by physicians in California and Georgia who purchased the specific recalled lots. Individuals relying on this thyroid medication for hormone replacement are most at risk of inconsistent dosing due to manufacturing deviations.
How to tell if you have this one
Check your bottle for the NDC number 68788-7604-09 (90-count) or 68788-7604-01 (100-count). Verify the lot number is either A0220Q or K15171 and that the expiration date is 10/31/2020. The product was repackaged by RLC Labs in Cave Creek, AZ.
- Brand
Nature-Throid- Category
Drug
All 4 products in this recall
FDA lists each product line separately under one recall event. Check your product description, lot or code numbers against each row. Every row shares the hazard and remedy on this page.
- Classification
Class II- Status
Terminated- Distribution
Repackaged tablets sold to three physicians located in CA and GA.
| Recall number | Product, codes & lots |
|---|---|
| D-1621-2020 | Nature-Throid, 1/2 Grain, 32.5 mg (Thyroid U.S.P. 1/2 gr. (32.5 mg)/Liothyronine (T3) 4.5mcg/Levothyroxine (T4) 19mch, 100-count tablets, Rx Only, Mfg: RLC Labs; Cave Creek, AZ, Preferred Pharmaceuticals, Inc. NDC 68788-9283-01; Lot #: L2717G, Exp. Date: 12/31/2020; Lot #: B2618A, Exp. Date: 12/21/2020; Lot #: C1419P, Exp. Date: 2/28/2021 |
| D-1622-2020 | Nature-Throid, 3/4 Grain (48.75 mg) Thyroid U.S.P. 3/4 gr. (48.75 mg)/Liothyronine (T3) 6.75mcg/Levothyroxine (T4) 28.5mcg, 90-count tablets, Rx Only, Mfg: RLC Labs; Cave Creek, AZ, Preferred Pharmaceuticals, Inc. NDC 68788-6860-09; Lot #: B2618E, Exp. Date: 2/28/2021 |
| D-1623-2020 | Nature-Throid, 1 Grain, 65 mg (Thyroid U.S.P. 1 gr. (65mg)/Liothyronine (T3) 9mcg/Levothyroxine (T4) 38mcg, packaged in a) 90-count bottles (NDC 68788-7604-09), b) 100-count tablets (NDC 68788-7604-01), Rx Only, Mfg: RLC Labs; Cave Creek, AZ, Preferred Pharmaceuticals, Inc.; a) Lot #: A0220Q, Exp. Date: 10/31/2020; b) Lot #: K15171, Exp. Date: 10/31/2020 |
| D-1624-2020 | Nature-Throid, 1.5 Grain, (97.5 mg), (Thyroid U.S.P. 1.5 gr. (97.5mg)/Liothyronine (T3) 13.5mcg/Levothyroxine (T4) 57mcg, 90-count bottles, Rx Only, Mfg: RLC Labs; Cave Creek, AZ, Preferred Pharmaceuticals, Inc. NDC 68788-7605-09; a) Lot #: A0220R, Exp. Date: 2/28/2021 |
What to do — step by step
Check Your Medication
Verify if your Nature-Throid bottle matches the recalled lot numbers (A0220Q or K15171) and expiration date (10/31/2020).
Contact Your Physician
Consult your doctor immediately if you have the recalled product to discuss alternative treatment options.
Where it went and when
Where it was distributed
Distributed in California and Georgia.
FDA distribution: “Repackaged tablets sold to three physicians located in CA and GA.” States read from FDA’s own wording; “not listed” means the notice does not name it.
States: California, Georgia.
Recall timeline
FDA terminated this recall 3.6 years after the firm started it.
- Firm started the recall
- FDA classified it Class II
- Published in FDA’s Enforcement Report
- FDA terminated the recall
Dates from the agency record only; steps without a date are left out.
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Where this comes from
The facts (hazard, remedy, dates, manufacturer) are pulled from the official FDA recall record. The plain-language summary and step-by-step checklist are written by GovInfoNow to make the official notice easier to act on — they don’t replace it.
- Official source: FDA Recall #D-1623-2020 (September 2, 2020) — FDA publishes no per-recall page; this is the official machine-readable enforcement record. Search FDA recalls for D-1623-2020 to see it in context.
- Plain-language summary written by qwen3.6:35b-a3b on October 11, 2026, from the official record above. Not reviewed by a person — if it conflicts with the FDA notice, the notice is correct. Report an error on this page.
- GovInfoNow is an independent service and is not a government agency. We republish official FDA recall data; we don’t issue, amend or administer recalls.