To cite package ‘openFDA’ in publications use:

  Parker S (2024). _openFDA: 'openFDA' API_. R package version 0.1.0,
  <https://CRAN.R-project.org/package=openFDA>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {openFDA: 'openFDA' API},
    author = {Simon Parker},
    year = {2024},
    note = {R package version 0.1.0},
    url = {https://CRAN.R-project.org/package=openFDA},
  }