To cite rxref in publications, use:

Smith S (2026). rxref: Tidy Utilities for RxNorm and NDC Resolution. R package version 0.4.0, https://www.stevenmsmith.org/rxref/.

Corresponding BibTeX entry:

  @Manual{,
    title = {rxref: Tidy Utilities for RxNorm and NDC Resolution},
    author = {Steven Smith},
    year = {2026},
    note = {R package version 0.4.0},
    url = {https://www.stevenmsmith.org/rxref/},
  }