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rxref: Getting started

rxref authors

Source: vignettes/rxref_intro.Rmd
rxref_intro.Rmd
# install.packages("devtools")
# devtools::install_github("ssmithm/rxref")
library(rxref)
library(dplyr)

Resolve messy inputs to RxCUIs 

resolve(c("metformin 500 mg tablet", "00093-1048-01", "8610"))

Properties for a set of RxCUIs 

ids <- c("860975", "860976")
get_properties(ids)

Map in both directions 

# NDC -> RxCUI(s)
map_ndc_to_rxcui(c("00093-1048-01", "00093-1048-10"))


# RxCUI -> NDCs (optionally filter by ACTIVE)
map_rxcui_to_ndc("860975")
map_rxcui_to_ndc("860975", status = "ACTIVE")

Notes

  • Results are memoised on disk between sessions. Use rxref_conf(cache = cachem::cache_mem()) for in-memory only.
  • Be kind to the API; increase rxref.rate_delay if batching many requests.
  • For strict reproducibility, we’ll add a SQL backend bound to monthly RxNorm releases in a later version.