Guides
GSRS
Documentation and user guides for the Global Substance Registration System (GSRS).
The Global Substance Registration System (GSRS) is integrated into precisionFDA and provides a standardized way to identify substances used in medicinal products. Use the resources below to learn how to work with GSRS.
External documentation
- FDA GSRS User Manual (PDF) — Official FDA user manual covering GSRS concepts, workflows, and substance registration procedures.
- GSRS User Guide (GitHub Wiki) — Maintained user guide for GSRS 3.x, hosted by NCATS on GitHub.