nocturnal leg cramps
"I use 1/4 tablet as needed (averages 1 time a week)  when the cramps come on.  They come suddenly and usually after being on my feet for many hours.  There is no stopping them, i,e, walking, rubbing, stretching.  They are the most painful experience you can imagine.  The results after taking the quinine are almost immediate.  Cramps stop, like a miracle.  Sometimes they return in a few minutes and I take a second 1/4 tab.  Never have I had to take more than that.  I worry about running out of the ones I have because I thought doctors could no longer write prescriptions for quinine. No side effects."