been doing that for years- when i was more active, i used to get leg cramps and foot cramps terrible- tonic water saved the day- almost every time- and very quickly too-
There is a precaution with quinine htough0 it can cause a deadly reaction- even in folks who have taken it all their lives- but this is very rare aS you woudl need to drink a lot of it- usually though if there is a reaction ,they sre mild- just be aware- also can cause internal bleeding in some prone to it- there’s actually quite a long list of symptoms- some fairly serious like blindness- but again, these are rare- the amounts in tonic water are very small- even if you chug a glass of it-
I just take a couple of small swigs and the cramps are gone.