# FDA Warning Letter: Par Health USA, LLC & Endo USA, Inc.
> 2026-04-21 · Center for Drug Evaluation and Research (CDER) · `3a02edcf899f29be`
## Letter
- **Company:** Par Health USA, LLC & Endo USA, Inc.
- **Posted Date:** 2026-04-21
- **Letter Issue Date:** 2026-04-15
- **Issuing Office:** Center for Drug Evaluation and Research (CDER)
## Subject
CGMP/Finished Pharmaceuticals/Adulterated
---
*Source: [FDA Warning Letters](https://www.fda.gov/inspections-compliance-enforcement-and-criminal-investigations/compliance-actions-and-activities/warning-letters) · MORVS · CC0 1.0*