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Drug FDA Class II Ongoing cGMP deviation

Unisom, SleepMinis, Diphenhydramine HCl, Mini-Capsules, 25 mg, 60 Mini-Capsules bottles, Dist. by Chattem, Inc., P.O. Box 2219, Chattanooga, TN 37409-0219, USA, UPC 0 41167 00670 2

Chattem Inc Published Apr 23, 2025

Risk level

Class II

May cause a temporary or reversible health problem; slight chance of serious harm.

Severity score 60/100

What should you do?

  • Check whether you have this product, using the lot codes, UPCs, and dates listed below.
  • Do not eat, serve, or sell the affected product.
  • Return it to the place of purchase for a refund, or throw it away in a sealed bag so people and animals can’t get to it.
  • Contact Chattem Inc or your place of purchase with questions, and see the source record below for full details.
Reason for recall

CGMP Deviations; detection of Nitrosamine Drug Substance-Related Impurities (NDSRI), N-nitroso-desmethyl-diphenhydramine (n-dph), above the FDA Recommended Intake Limit

Hazards

N-nitroso-desmethyl-diphenhydramine · primary

Affected products (1)

Unisom, SleepMinis, Diphenhydramine HCl, Mini-Capsules, 25 mg, 60 Mini-Capsules bottles, Dist. by Chattem, Inc., P.O. Box 2219, Chattanooga, TN 37409-0219, USA, UPC 0 41167 00670 2

129,240 bottles

Lot codes: 22L603, 378999
Code info: LOT 22L603, EXP: Oct 2025; LOT 378999, EXP: Feb 2027

Affected areas

Nationwide

Timeline

  1. Initiated
    Mar 26, 2025
  2. Published
    Apr 23, 2025
Recall number
D-0362-2025
Agency
U.S. Food and Drug Administration
Country
US
Source data (openFDA JSON) About FDA enforcement reports

FDA records come from the openFDA drug enforcement-report dataset — the agency's full weekly enforcement list. Most entries are not issued as consumer press releases, so they won't appear on fda.gov/recalls or in a web search. The source record link above resolves this exact recall by its number.