FDA warning letter · Drugs

Chem-Tech, Ltd.

Issued · Posted by FDA

Selected passages from the FDA letter

Quoted FDA text from the published dataset. These selected excerpts are not the complete letter.

Passage 1

Your firm failed to thoroughly investigate any unexplained discrepancy or failure of a batch or any of its components to meet any of its specifications, whether or not the batch has already been distributed (21 CFR 211.192).

Passage 2

Your firm failed to conduct adequate manufacturing investigations into out-of-specification (OOS) results obtained by your external laboratory for your **(b)(4)**, an over-the-counter (OTC) drug product. As such, root cause(s) for the OOS results were not determined and no corrective and preventive actions (CAPA) were identified.

Passage 3

Your firm failed to clean, maintain, and sanitize and/or sterilize equipment and utensils at appropriate intervals to prevent malfunctions or contamination that would alter the safety, identity, strength, quality, or purity of the drug product beyond the official or other established requirements, and you failed to establish and follow adequate written procedures for cleaning and maintenance of equipment (21 CFR 211.67(a) and (b)).

Passage 4

Your firm failed to establish adequate written responsibilities and procedures applicable to the quality control unit and to follow written procedures applicable to the quality control unit (21 CFR 211.22(d)).

Passage 5

Failure to address violations may also cause FDA to withhold issuance of Export Certificates. FDA may withhold approval of new applications or supplements listing your firm as a drug manufacturer until any violations are completely addressed and we confirm your compliance with CGMP. We may re-inspect to verify that you have completed corrective actions to address any violations.

Citations in the original letter

As cited in this historical letter, not a statement of current regulatory requirements.

  • 21 CFR 211.192
  • 21 CFR 211.110(a)
  • 21 CFR 211.67(a)
  • 21 CFR 211.22(d)