Suggest Remedy For Constant Spasms And Tightness In Leg After Bypass Surgery

my husband had a quadruple bypass on Jan 11th he has had RLS since (we think) and his foot & ankle are numb on the leg where the vein was removed. He never sleeps. His leg has constant spasms & the muscle or tendons are tight and he rubs them continually. What do you think of requip?