Is a Form 483 the same as a Warning Letter?

No. A Form 483 lists an FDA investigator’s observations at the close of an inspection; it is not a final agency determination. FDA may or may not follow up with a Warning Letter depending on the firm’s response and the severity of the findings.

Where can I read the full Form 483?

The verbatim inspection record is the source of truth — always confirm citation language against the original FDA document before acting.

What is an FDA Form 483?

A Form FDA 483 lists an FDA investigator's written observations at the close of a facility inspection, issued under section 704(b) of the Federal Food, Drug, and Cosmetic Act. It documents conditions the investigator judged may violate FDA regulations. A 483 is not an enforcement action or a final determination that a violation occurred.

Does this Form 483 mean Genzyme Ireland Limited violated the law?

No. A Form 483 documents an investigator's observations only. FDA reviews the firm's written response and any corrective actions taken before deciding whether further action is warranted, and many 483s are closed without additional enforcement once a firm shows adequate correction.

Genzyme Ireland Limited — FDA Form 483 Inspection, January 17, 2025 (1 Citations)

Here's the summary: FDA inspected Genzyme Ireland Limited in Ireland and issued a Form 483 listing 1 inspectional observation following an inspection that concluded 2025-01-17. FDA records classify Genzyme Ireland Limited as a drug manufacturer. A Form 483 documents an investigator's findings at the close of an inspection under the Federal Food, Drug, and Cosmetic Act; it is not a final agency compliance determination. The observations on this page are drawn directly from the FDA-issued Form 483 record.

Key facts

Firm	Genzyme Ireland Limited
FEI / inspection ID	3003809840
Inspection end date	January 17, 2025
Citation count	1

Citations explained

Observation 1 — Attachment 1 Genzyme Ireland Limited Waterford, Ireland FEI: 3003809840 Inspection: 01/09 -

Attachment 1 Genzyme Ireland Limited Waterford, Ireland FEI: 3003809840 Inspection: 01/09 - 17/2025 Page 1 of 7 (b) (4) (b) (4) (b) (4) (b) (4) (b) (4) (b) (4) (b) (4) (b) (4) (b) (4) (b) (4) (b) (4) (b) (4) (b) (4) (b) (4) (b) (4) (b) (4) (b) (4) (b) (4) (b) (4) (b) (4) (b) (4) (b) (4) (b) (4) (b) (4) (b) (4) (b) (4) (b) (4) (b) (4) (b) (4) (b) (4) (b) (4) (b) (4) (b) (4) (b) (4) (b) (4) (b) (4) (b) (4) (b) (4) (b) (4) (b) (4) (b) (4)

What a Form 483 means

A Form FDA 483 is issued at the close of an FDA facility inspection to list conditions an investigator observed that may violate the Federal Food, Drug, and Cosmetic Act or its implementing regulations. It reflects the investigator's professional judgment at that point in time and is not a final agency determination, an enforcement action, or proof that a violation occurred. Firms are expected to respond in writing, typically within 15 business days, describing the corrective and preventive actions they plan to take. FDA reviews that response, along with any follow-up evidence, before deciding what happens next. Many 483s are resolved through corrective action alone. When FDA judges a firm's response inadequate, or when the underlying conditions are serious enough, the observations documented here can lead to a Warning Letter or further regulatory action. This page presents the observations exactly as recorded on the FDA-issued document; always confirm citation language against the original record before relying on it.

Genzyme Ireland Limited’s FDA history

Argus HQ has recorded 2 total FDA actions tied to Genzyme Ireland Limited: 1 warning letter, 0 recalls, 0 approval records, and 1 Form 483 inspection citation.

Frequently asked questions

Is a Form 483 the same as a Warning Letter?: No. A Form 483 lists an FDA investigator’s observations at the close of an inspection; it is not a final agency determination. FDA may or may not follow up with a Warning Letter depending on the firm’s response and the severity of the findings.
Where can I read the full Form 483?: The verbatim inspection record is the source of truth — always confirm citation language against the original FDA document before acting.
What is an FDA Form 483?: A Form FDA 483 lists an FDA investigator's written observations at the close of a facility inspection, issued under section 704(b) of the Federal Food, Drug, and Cosmetic Act. It documents conditions the investigator judged may violate FDA regulations. A 483 is not an enforcement action or a final determination that a violation occurred.
Does this Form 483 mean Genzyme Ireland Limited violated the law?: No. A Form 483 documents an investigator's observations only. FDA reviews the firm's written response and any corrective actions taken before deciding whether further action is warranted, and many 483s are closed without additional enforcement once a firm shows adequate correction.

See if this 483 escalates to a warning letter — before your auditor asks.

Free weekly briefing tracks every FDA inspection outcome.

Full FDA history for Genzyme Ireland Limited

Warning letter: Genzyme Ireland Limited — CGMP/Deviations/Biologics License Application (BLA) (2026-06-22) →

Compiled by Argus HQ Research from FDA primary sources · Reviewed by Andy Gaber, Founder

Cite this record

Reusing this data in reporting or research? Here’s a ready-made citation.

APA

Argus HQ Research (2025). Genzyme Ireland Limited — FDA Form 483 Inspection, January 17, 2025 (1 Citations). Digital Empire LLC. Retrieved from https://argushq.ai/483/fda-483-genzyme-ireland-limited-2025-01-17-3003809840

MLA

"Genzyme Ireland Limited — FDA Form 483 Inspection, January 17, 2025 (1 Citations)." Argus HQ Research, Digital Empire LLC, 2025, argushq.ai/483/fda-483-genzyme-ireland-limited-2025-01-17-3003809840.

Chicago

Argus HQ Research. "Genzyme Ireland Limited — FDA Form 483 Inspection, January 17, 2025 (1 Citations)." Digital Empire LLC. Accessed July 13, 2026. https://argushq.ai/483/fda-483-genzyme-ireland-limited-2025-01-17-3003809840.

BibTeX

@misc{argushq_argushq_ai_483_fda_483_genzyme_ireland_limited_2025_01_17_3003809840_2025,
  title = {Genzyme Ireland Limited — FDA Form 483 Inspection, January 17, 2025 (1 Citations)},
  author = {{Argus HQ Research}},
  year = {2025},
  publisher = {Digital Empire LLC},
  url = {https://argushq.ai/483/fda-483-genzyme-ireland-limited-2025-01-17-3003809840},
  note = {Accessed: July 13, 2026}
}

Source: FDA.gov — Inspection Classification Database ↗