How many of your loved ones did they let die?

Knowingly.

This is from 2003-

The beverage Tonic Water has preserved in its name the long-forgotten medicinal origins of quinine. However, the concentration of quinine in Tonic Water today is too low for any beneficial systemic effect. Therefore, the use of quinine in cancer may be warranted both for its anti-inflammatory properties as well as its inhibitory effect on tumor adaptation to therapies.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC305362/#__ffn_sectitle