Independent register of U.S. FDA drug recalls · updated Oct 10, 2026
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Class II · Moderate risk Terminated Initiated Aug 25, 2020 (6 years ago)

WP Thyroid

Class II — Moderate risk. May cause temporary or reversible harm; serious harm unlikely.

Why it was recalled

CGMP Deviations: manufactured under the same conditions as those found to be subpotent.

Cause type: Wrong potency / content

Sub- or super-potent product, or a failed content-uniformity / assay test. You may receive too little or too much active ingredient - a direct dosing risk. All wrong potency / content recalls.

What was recalled

WP Thyroid, Westhroid Pure, 1.75 Grain (113.75 mg) Thyroid USP, packaged in a) 1,000 Tablets, NDC 64727-6150-2 ; b) 30 Tablets, NDC 64727-6150-4; c) 60 Tablets, NDC 64727-6150-5; d) 90 Tablets, NDC 64727-6150-6; e) 100 Tablets, NDC 64727-6150-1; Rx only, Manufactured by: RLC Labs Phoenix, AZ 85034

Affected NDCs 64727-6150-01 64727-6150-02 64727-6150-04 64727-6150-05 64727-6150-06

Compare with the code on your package — it is the most precise check available.

Drug: Thyroid Category: Thyroid Medication

Recalling firm
RLC Labs Inc.
NDC code
64727-6150-2
Origin
AZ, United States
Initiated by
Voluntary: Firm initiated
FDA recall number
D-1612-2020 · FDA notice

Check, then ask. Class II means harm is possible but usually temporary or reversible. Find the lot number on your package; if it matches, ask your pharmacist about a replacement. Do not simply stop a prescribed medication on your own - the gap can be riskier than the recall. This recall is now terminated, which means the firm has finished removing the affected product; anything on pharmacy shelves today should be unaffected.

Other Thyroid recalls

See all
Class II · Moderate risk

Thyroid

Subpotent Drug

Ongoing Wrong potency / content Specialty Process Labs LLC NDC 81305-100-02 D-0294-2026
Class II · Moderate risk

S.P Labs

Failed Stability Specifications

Completed Stability / shelf life Specialty Process Labs LLC D-0447-2024
Class II · Moderate risk

S.P.Labs

Failed Stability Specifications

Completed Stability / shelf life Specialty Process Labs LLC NDC 81305-500-01 D-0446-2024

Other recalls by RLC Labs Inc.

All 2020 recalls
Class I · High risk

Nature Throid

Subpotent Drug: FDA analysis found product to be subpotent

Terminated Wrong potency / content RLC Labs Inc. NDC 64727-3305-4 D-1619-2020
Class I · High risk

Nature Throid

Subpotent Drug: FDA analysis found product to be subpotent

Terminated Wrong potency / content RLC Labs Inc. NDC 64727-3308-4 D-1618-2020
Class I · High risk

Nature Throid

Subpotent Drug: FDA analysis found product to be subpotent

Terminated Wrong potency / content RLC Labs Inc. NDC 64727-3303-1 D-1617-2020
Class I · High risk

Nature Throid

Subpotent Drug: FDA analysis found product to be subpotent

Terminated Wrong potency / content RLC Labs Inc. NDC 64727-3302-1 D-1616-2020