Every week FDA posts warning letters to drug manufacturers. Most follow an inspection whose observations were first listed on a Form FDA 483. We take one letter at a time, from FDA's own published text: each finding, why it happens, how plants prevent it, and which Atto Pharma module does that. Two a day, newest letters first.
What FDA cites most, in figures · by area, by 21 CFR 211 section, by system · find these problems in your own records
FDA Warning Letter: Eurofins SF Analytical Laboratories, Inc. (October 2026)
FDA cited 21 CFR 211.194(a), 211.192 and 211.22 at a contract microbiology laboratory: omitted TNTC and compromised plate results, uninvestigated media conditions and weak quality oversight. What each means and which controls help.
FDA Warning Letter: Rohto Pharmaceutical Co., Ltd. (October 2026)
FDA's October 2026 warning letter to Rohto Pharmaceutical Co., Ltd. (Osaka) cites falsified cleaning and monitoring records, aseptic airflow and visual inspection investigations. Here is what each control looks like.
FDA Warning Letter: Northland Nuclear Medicine, LLC, October 2026: PET Aseptic Controls
FDA's October 2026 warning letter to Northland Nuclear Medicine, LLC, a PET radiopharmaceutical maker, cites uninvestigated EM excursions, CAPAs closed without effectiveness checks, and aseptic controls. Here is what each finding means.
FDA Warning Letter: Sanrace Biotechnology Co., Ltd. (October 2026)
FDA's October 2026 warning letter to Sanrace Biotechnology Co., Ltd. cites five CGMP findings, from component identity testing to stability. What each means and which controls prevent it.
FDA Warning Letter: Guangdong Bangze Medicine Co., Ltd. – October 2026
FDA's October 2026 warning letter to Guangdong Bangze Medicine, after a records request, cites component and finished-product testing, the quality unit, stability and process controls. What each finding means and how to check your plant.
FDA Warning Letter: Pritam International Private Limited, October 2026
FDA's October 2026 warning letter to Pritam International Private Limited of Haridwar, India, cites a delisted color additive, laboratory data, component testing, quality unit oversight and water. What it means for your plant.
FDA Warning Letter: Guangzhou Jiugong Research And Development Biotechnology Co., Ltd. Oct 2026
FDA's October 2026 warning letter to a Guangzhou OTC drug maker cites a delisted color additive on a label, weak quality unit review and unanswered FDA questions. Here is how plants prevent each.
See these controls on your own batch records
Atto Pharma eBMR, Atto eLogbooks and Atto QMS: limits checked as values are entered, electronic signatures and audit trails, investigations and CAPA that follow your SOPs. Built for 21 CFR Part 11 and EU GMP Annex 11.