# FDA Warning Letter: AQ USA Inc., d.b.a Ross Healthcare Inc.
> 2026-02-24 · Center for Drug Evaluation and Research (CDER) · `66a14f8c19c38057`
## Letter
- **Company:** AQ USA Inc., d.b.a Ross Healthcare Inc.
- **Posted Date:** 2026-02-24
- **Letter Issue Date:** 2026-02-12
- **Issuing Office:** Center for Drug Evaluation and Research (CDER)
## Subject
CGMP/Finished Pharmaceuticals/Adulterated
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*Source: [FDA Warning Letters](https://www.fda.gov/inspections-compliance-enforcement-and-criminal-investigations/compliance-actions-and-activities/warning-letters) · AI Analytics · CC0 1.0*