After over 100 uears quinine is now considered unhealthy and of no real use. Why? Ask the question! Doing a search online of quinine every website now wants you to accept coomies even if you have them turned off. Interesting..... and nkw after over 100 years quinine is NOT recommended for nightly leg cramps. Again interesting. Tonic water is not recommened for any medicinal use whatsoever. I grew up seeing doctors prescribe it for many things. Now all of a sudden, its taboo. Ask the question. Why?  An example of what I am finding now. https://www.drugs.com/mtm/quinine.html