I have been taking it for some 2 weeks, and have night time itchy rashes on my legs, that seem to be affected by warm temps and clothing contact. I had insominia before taking metoprolol, and it is still bad. Also have night time pressure spikes. Metropolol succinate ER, 50mg daily in the morning. Finally will see a cardiologist this week, wanted to go to a specialist instead of my primary care physician.