 [ Symptoms ] i have arthritis in my knees and my leg stay sore and feel like they are about to cramp is there anything i can take  i take hyland leg cramp pills but they only help for an hour or so i talked with my pcp but they have no answers can someone please help me  [ Disease ] i have cmt charcot marie tooth disease a form of muscular dystrophy and drink schwepps tonic water to relieve leg and arm cramps tonic water contains quinine at low levels i have found that when chilled the tonic water tastes similar to grapefruit juice quinine pills are also available but i have read that gastrointestinal distress can result from the pills i hope this helps you best wishes