My heart Doc said stop them and see how you feel. I wish he would have said ,go off them a little at a time! He did not. Complete cold turkey. I will Never do that again! Withdrawls...oh my! My whole body shook! Inside shook too! It felt like I was being strangled! My legs were weak. My hands were trembling. My arm pits hurt like swollen glands! My neck on the left side swelled up and made my shoulders ache! My sleep changed. But for the good..I no longer wake up with purple hands! I use to sleep like I was DEAD, don't sleep like that anymore! This was after being on Coreg for 21 years!