FDA warning letter · Drugs

Similasan AG

Issued · Posted by FDA

FDA published a close-out letter on Jul 30, 2026. The passages below are from the original warning letter.

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 establish and follow appropriate written procedures that are designed to prevent microbiological contamination of drug products purporting to be sterile, and that include validation of all aseptic and sterilization processes. (21 CFR 211.113(b))

Passage 2

Your firm failed to establish laboratory controls that include scientifically sound and appropriate specifications, standards, sampling plans, and test procedures designed to assure that components, drug product containers, closures, in-process materials, labeling, and drug products conform to appropriate standards of identity, strength, quality, and purity. (21 CFR 211.160(b))

Passage 3

Your firm failed to ensure that laboratory records included complete data derived from all tests necessary to ensure compliance with established specifications and standards. (21 CFR 211.194(a))

Passage 4

Your firm failed to establish an adequate quality unit and the responsibilities and procedures applicable to the quality control unit are not in writing and fully followed (21 CFR 211.22(a) and 211.22(d)).

Citations in the original letter

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

  • 21 CFR 200.50(b)(1)
  • 21 CFR 210
  • 21 CFR 211.113(b)
  • 21 CFR 211.160(b)
  • 21 CFR 211.194(a)
  • 21 CFR 211.22(a)