FDA warning letter · Drugs

Absara Cosmetics S.A.P.I DE C.V.

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

The methods provided showed differences from USP methods without justification and did not describe an internal standard, system suitability, and contained calculation errors.

Passage 2

However, you did not provide adequate scientific justification to support that conclusion. Therefore, it is unclear whether you correctly identified the root cause and adequately expanded the investigation to include all impacted products and batches. In addition, your investigation did not include a review of your test methods, laboratory operations, and analytical results.

Citations in the original letter

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

  • 21 CFR 211.160
  • 21 CFR 211.192