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rgsrs  

Query the FDA Global Substance Registration System (GSRS) API
View on CRAN: Click here


Download and install rgsrs package within the R console
Install from CRAN:
install.packages("rgsrs")

Install from Github:
library("remotes")
install_github("cran/rgsrs")

Install by package version:
library("remotes")
install_version("rgsrs", "0.1.0")



Attach the package and use:
library("rgsrs")
Maintained by
Claudio Zanettini
[Scholar Profile | Author Map]
All associated links for this package
First Published: 2026-05-05
Latest Update: 2026-05-05
Description:
Provides functions to query the FDA Global Substance Registration System (GSRS) REST API (<https://gsrs.ncats.nih.gov/api/v1/>). Enables programmatic access to substance records, UNII identifiers, synonyms, external codes, and chemical structures for over 170,000 registered substances.
How to cite:
Claudio Zanettini (2026). rgsrs: Query the FDA Global Substance Registration System (GSRS) API. R package version 0.1.0, https://cran.r-project.org/web/packages/rgsrs. Accessed 21 Aug. 2026.
Previous versions and publish date:
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Complete documentation for rgsrs
Functions, R codes and Examples using the rgsrs R package
Full rgsrs package functions and examples
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