# License for `MedxR`

This package, `MedxR`, is licensed under the **GNU General Public License Version 3 (GPL-3)**.

You are free to:

- Use, modify, and distribute the package, as long as any modifications or derived works also comply with the GPL-3.
- Distribute copies of this package with attribution, keeping this license intact.

## License Text

The full text of the GNU General Public License Version 3 (GPL-3) can be found [here](https://www.gnu.org/licenses/gpl-3.0.txt).

## Note on FDA and Health Canada APIs

The `MedxR` package depends on public APIs provided by the U.S. Food and Drug Administration (FDA) and Health Canada for accessing drug-related regulatory information. These APIs are publicly accessible and provided for informational and research purposes.

The **FDA API** is part of the openFDA initiative and is made available under an open data policy. No authentication is required for general access, and no attribution is explicitly required by the FDA. For more details, visit the [openFDA website](https://open.fda.gov/) and review their [Terms of Service](https://open.fda.gov/terms/).

The **Health Canada Drug Product Database (DPD) API** is also openly accessible and made available through the Government of Canada's open data platform. Attribution is not strictly required but is encouraged. For further information, see the [Health Canada DPD API documentation](https://health-products.canada.ca/api/documentation/dpd-documentation-en.html) and the [Government of Canada Open Data Licence](https://open.canada.ca/en/open-government-licence-canada).

While attribution is not mandatory for either API, we strongly recommend reviewing their respective documentation and policies for any updates or usage considerations.


## Note

The `MedxR` package, including all its data files (.rda) and code files, is licensed under the GNU General Public License, version 3 or later (GPL-3).

## Copyright Notice

© 2026 Renzo Caceres Rossi. All rights reserved under the GPL-3.
