Cardiologist put me on amiodarone 200 mg daily. three days later my feet and legs were swelling, he told me to take 20 mg Lasix and 20mg.potassium 2 x day for 2 days. On the 3rd night later, I could not sleep, when I laid down I could not fall asleep and my muscles would start jumping, jerking and would have pins and needle sticking me all over my body. He said I should see primary doctor, wasn t medicine. Also, legs week, over tired, feel terrible in general, no strength, slightest thing wipes me out. I am scheduled to see a new cardiologist Friday the 22nd. Is this medicine causing these side effects.