I have been taking metoprolol - 25mg twice daily for the past 2-1/2yrs. I gained 12 lbs. Within 2wks time about 2yrs ago and cannot lose it no matter what (have since gained a total of 20 lbs). I exercise faithfully, run, walk and workout and eat right. Also, my hair has thinned about 50% and my hands sometimes get swollen (i'm 38yrs old). Has anybody else had these symptoms due to taking this medicine? If so, what did you do? I can't just stop taking it, but really don't want to change to a new med. I've read that sudden weight gain and reversible hair loss can be a side-effect. I just wanted to find out if anyone found a doctor that concurs with that and what you did about it. Thanks.