[Aldous]

Originally Posted by Aldous

Quinine is chemically related to hydroxychloroquine and chloroquine. I've been drinking a glass of diet tonic water most days. There isn't a lot of quinine in the tonic water sold in stores, though.

Tonic water with quinine under black light.
https://www.youtube.com/watch?v=tLpfLSFhGkw

In the United States, the US Food and Drug Administration (FDA) limits the quinine content in tonic water to 83 ppm[2] (83 mg per liter if calculated by volume)
https://en.wikipedia.org/wiki/Tonic_water

https://en.wikipedia.org/wiki/Quinine
https://en.wikipedia.org/wiki/Quinin...c_water_uv.jpg

I found this recently.
Quinine Water-Triggered Atrial Tachyarrhythmia
https://www.cureus.com/articles/1287...yarrhythmia#!/