I was on 25mg twice a day. While on it, I gained weight and could not get it off. I got out of breath easily. I told my doctor about it and he scheduled a nuclear stress test. The stress test found no problems except leaving my bank account a grand lighter. Not the kind of weight loss I was looking for. So, I quit taking Metropolol cold turkey a week ago. I had no issues. Maybe because I was on a smaller dose. Already, taking three flights of stairs does not leave me winded. I'm bothered by the fact my doctor discounted the side effects. Now to get the weight off.