I have been on Toprol -XL Metoprolol ER 100 MG, I have been on for about 2 mos. Not quite sure have to check dr records. I have had Weight gain about 20 lbs, headaches, swelling of ankles and feet,shortness of Breath, a horrible feeling of not being able to catch or take my breath, fear anxiety, stomach pains, depression, vivid dreams, waking up and not being able to sleep, tossng and turning until 4am. could feel heart beating fast but subtle. numbing in my hands and fingers lack of motivation. I have been going to a nurse practioner who is helping me to wean off of this drug. It has changed me I ave never been ill in my life except for the common cold. and having babies. There is really nothing wrong with my heart according to tests they have run, My Blood pressure was high and they were trying to get it under control, tried other meds and then went to this. It has been a horrible experience especially when you just learned you have HBP and then you get all these terrible side effects from the medicine that is suppose to be saving your life or help save it. I do not know how I will do with weaning But i will sure try and keep you posted. I am a little nervous about being weaned off, but hopefully I can find something natural to help me out. This is literally been poison to my Body ******