# FDA recall D-1616-2020

> **RLC Labs Inc.** · Class I · drug recall initiated 2020-08-25.

## Product

Nature Throid, 3/4 Grain (48.75 mg) Thyroid USP [Liothyronine (T3) 6.75 mcg, Levothyroxine (T4) 28.5 mcg], packaged in a) 100-count bottles (NDC 64727-3302-1) and b) 1000-count bottles (NDC 64727-3302-2), Rx only,  Manufactured by: RLC Labs Phoenix, AZ 85034

## Reason for recall

Subpotent Drug: FDA analysis found product to be subpotent

## Distribution

Nationwide in the United States

## Key facts

- **Recall number:** D-1616-2020
- **Recalling firm:** RLC Labs Inc.
- **Classification:** Class I
- **Product type:** drug
- **Status:** Terminated
- **Initiation date:** 2020-08-25
- **Report date:** 2020-09-23
- **Termination date:** 2023-11-08

- **Voluntary/Mandated:** Voluntary: Firm initiated
- **Location:** Phoenix, AZ, United States

## Primary source

FDA Enforcement Reports: https://www.accessdata.fda.gov/scripts/ires/index.cfm?Product=D-1616-2020

## Citation

> AI Analytics. FDA recall D-1616-2020. Retrieved 2026-06-25 from https://api.ai-analytics.org/recall/D-1616-2020. Source: US FDA. Licensed CC0.

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