# FDA Warning Letter: ECI Pharmaceuticals, LLC
> 2022-02-15 · Center for Drug Evaluation and Research | CDER · `b61701cca8f76e2a`
## Letter
- **Company:** ECI Pharmaceuticals, LLC
- **Posted Date:** 2022-02-15
- **Letter Issue Date:** 2022-02-03
- **Issuing Office:** Center for Drug Evaluation and Research | CDER
## Subject
Failure to Register and List
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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*