>>9230587 lb
>Cinchonine
I disagree. Pubmed has many papers on Cinchonine. If you are looking for magic bullets, they are hard to find, but drugs that work against the retroviruses Flu, Corona, HIV also tend to be anti-malarial and anti-cancer.
So there is some good evidence that Cinchona has its uses and is not terribly dangerous.
Kudzu and puerarin are all over the place. I don't see why it would be used against viruses. Just because two plants are related, does not mean they have the same kind of chemical components. You eat carrots every day, but you will only eat Hemlock once, because it is a fatal poison.