i have muscle cramps during the night soometime as many as for times a night ,let me tell you they ar no small cramps sometimes icry it hurts so much ,and its not calf cramps it starts iin the ankles and they can last for ten minutes .I am 70 years old and i take different medication and i have very bad varicose veins so its hard to tell i guess. but i dont thinks i should be getting muscle cramps like that every night .so please give an answer .Ghislaine Boisvert