Independent register of U.S. FDA drug recalls · updated Oct 10, 2026
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Class II · Moderate risk Completed Initiated Mar 1, 2024 (3 years ago)

S.P Labs

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

Why it was recalled

Failed Stability Specifications

Cause type: Stability / shelf life

The product degraded or failed stability testing before its labeled expiry. Heat, moisture or time can break the drug down into degradants or reduce potency. All stability / shelf life recalls.

What was recalled

S.P Labs, Thyroid, USP, Rx only, For Manufacturing, Processing or Repackaging Use only, Specialty Process Labs, Phoenix, AZ, NDC #'s a) 81305-100-01, b)81305-100-02, c)81305-100-03

Affected NDCs 81305-0100-01 81305-0100-02 81305-0100-03

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

Drug: Thyroid Category: Thyroid Medication

Recalling firm
Specialty Process Labs LLC
Origin
AZ, United States
Initiated by
Voluntary: Firm initiated
FDA recall number
D-0447-2024 · 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 completed, 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 NDC 81305-500-01 D-0446-2024
Class II · Moderate risk

Armour Thyroid

CGMP Deviations: Products were exposed to temperatures outside of the products labeled storage conditions.

Terminated Temperature excursion Cardinal Healthcare D-0168-2024

Other recalls by Specialty Process Labs LLC

All 2024 recalls
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 NDC 81305-500-01 D-0446-2024