Quinine is in Hyland's Leg Cramps homeopathy with quinine.  Even though you don't take homeopathies preventively it wouldn't hurt to take this daily.  You only need one tablet under the tongue in a clean mouth and let it melt (sublingual).  Proper dosing is important in homeopathics so as to prevent aggravations which means if your legs get crampy stop. A homeopath would be able to properly treat you if you were sick with the 'rona.