It would appear that a famous brand of tonic water contains quinine.
Drinking orange juice or tonic water may help to alleviate any cramp pain.
Purists will note that modern lillet lacks the acerbic bitterness of yesteryear, so the perfect martini recipe will add a bit of quinine (the stuff that makes tonic water a bit bitter) to the mix.
A small pinch of quinine powder or a touch of tonic water (no more than an eighth of a tablespoon) will do the trick if Blanc is the Lillet of your choice.
Gin, vodka or light rum and tonic water is a top choice, easily garnished with a lime wedge.