> For the complete documentation index, see [llms.txt](https://docs.open-systems-pharmacology.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.open-systems-pharmacology.org/v13/copyright.md).

# Open Systems Pharmacology Suite Manual & Copyright

Version 13

Publication date 2026

Copyright © 2026 [Open Systems Pharmacology Community](/v13/references/references.md#115)

The manual is provided “as is” without expressed or implied warranty.

To refer to this manual in a publication, see [How to Cite this Manual](/v13/how-to-cite.md).

**Trademark information:**

All trademarks within this manual belong to their legitimate owners.

The Open Systems Pharmacology Suite uses the CVODES solver:

Copyright (c) 2002-2021, Lawrence Livermore National Security. Produced at the Lawrence Livermore National Laboratory. Written by A.C. Hindmarsh, D.R. Reynolds, R. Serban, C.S. Woodward, D. J. Gardner, S.D. Cohen, A.G. Taylor, S. Peles, L.E. Banks, and D. Shumaker. UCRL-CODE-155950 (CVODES) All rights reserved.

Please, refer to the LLNL website for detailed information on licensing:

* <https://computing.llnl.gov/projects/sundials/license>
* <https://computing.llnl.gov/projects/sundials>

Internet:

* <http://www.open-systems-pharmacology.org>

Support:

* <http://forum.open-systems-pharmacology.org>