FDA-Inspected Site

United Therapeutics Corporation

6 FDA inspections are on record for United Therapeutics Corporation in Durham, United States.

483· Form 483 issued

Durham, United States · Last updated July 10, 2026

Overview

  • 6 FDA inspections are on record.
  • 2 inspections produced a Form 483.
  • The most recent recorded inspection date is 2025-02-28.

At a glance

Inspections

6

Form 483s

2

EIRs

0

Last outcome

Form 483

Inspection history

FDA inspections on record, most recent first.

InspectionCategoryOutcomeForm 483
19 Feb 2025 – 28 Feb 2025Human Drugs483View 483 →
30 Apr 2018 – 3 May 2018Human DrugsClean
21 Feb 2017 – 24 Feb 2017Human DrugsClean
17 Aug 2015 – 21 Aug 2015Human Drugs483View 483 →
25 Sep 2013 – 27 Sep 2013Human DrugsClean
2 Aug 2012Not recordedClean

Observations on record

Form 483 observations cited at this site, most recent first.

28 Feb 2025
FDCA 582(b)(4)

Systems in place to comply with verification requirements

Cited by Janet A Rajan

21 Aug 2015
21 CFR 211.198(a)

Complaint Handling Procedure

Cited by Lillie D Witcher, Metitia G Sanders, Tamara M Casselman, Metitia M Gramby

21 Aug 2015
21 CFR 211.198(a)

Complaint Handling Procedure

Cited by Lillie D Witcher, Metitia G Sanders, Tamara M Casselman, Metitia M Gramby

Investigators

FDA investigators tied to this site in the record.

Metitia G Sanders1 insp.
Penny H Mccarver1 insp.

Recurring citations

CFR citation patterns observed across this site's inspections.

CitationWhat it coversCited
21 CFR 211.198(a)Cited across public-safe Form 483 observations2x
FDCA 582(b)(4)Cited across public-safe Form 483 observations1x

Full site report

Get the verbatim findings behind United Therapeutics Corporation's 2 Form 483s

Source PDFs, verbatim observations, and recurring CFR citations, so your team knows what this site gets cited for.

  • The site's full inspection history, with every Form 483 and its outcome
  • Warning letters and recalls tied to the company behind it
  • Whether recurring CFR citations get closed out or repeat