To cite package ‘pkpd.Release’ in publications use:

  Manlapaz P (2026). _pkpd.Release: Model Fitting and Simulation for
  Drug Release Kinetics and PK/PD_. R package version 0.1.0,
  <https://CRAN.R-project.org/package=pkpd.Release>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {pkpd.Release: Model Fitting and Simulation for Drug Release Kinetics and PK/PD},
    author = {Paul Angelo C. Manlapaz},
    year = {2026},
    note = {R package version 0.1.0},
    url = {https://CRAN.R-project.org/package=pkpd.Release},
  }