"Hydroxychloroquine Sulfate". The American Society of Health-System Pharmacists. Archived from the original on 29 December 2016. Retrieved 8 December 2016.
World Health Organization (2019). World Health Organization model list of essential medicines: 21st list 2019. Geneva. hdl:10665/325771. WHO/MVP/EMP/IAU/2019.06. License: CC BY-NC-SA 3.0 IGO.
web.archive.org
"Hydroxychloroquine Sulfate". The American Society of Health-System Pharmacists. Archived from the original on 29 December 2016. Retrieved 8 December 2016.