[P.O.E.]

“Tonic water contains no more than 83 mg of quinine per liter—a much lower concentration than the 500 to 1,000 mg in the therapeutic dose of quinine tablets. “

Source:
https://www.health.harvard.edu/bone-and-muscle-health/will-tonic-water-prevent-nighttime-leg-cramps

So, in other words, order your gin & tonics 10 at a time :)

[RummyChick]

from internet:

“OTC quinine and quinine sulfate have historically been used for muscle cramps, particularly nocturnal leg cramps. ... Consequently, the FDA banned all OTC sales of quinine in 1994. Prescription quinine formulations are still available but are highly regulated”

[Tolerance Sucks Rocks]

Is quinine another name for that malaria drug that shows promise to treat it?