http://www.medications.com/effect/view/21946 Hello to you all. I have been on Toprol XL for 8-10 months. I have "palpitations" which is why I was placed on this med. Also a diagnosis of Mitral Valve Prolapse. My doctor told me that the MVP can trigger the palpitations and that Toprol is the drug of ch Sun, 01 Jul 2007 23:45:19 -0400 http://www.medications.com/effect/view/21946?item=616 I am having the same trouble. I have been on Toprol xl 50 mg for MVP and I have gained 12 lbs in three months, plus the heart palpitations have started again. I plan on getting off this medicine soon. http://www.medications.com/effect/view/21946?item=616 Sun, 08 Jul 2007 16:18:56 -0400 http://www.medications.com/effect/view/21946?item=678 I can relate to this...In almost two years I've gaind about 20 pounds, and I can't seem to lose more than a pound or two even when I starve myself. I've never had a weight problem like this in my life, and I'm 48 years old. I was originally put on this b http://www.medications.com/effect/view/21946?item=678 Mon, 09 Jul 2007 08:36:40 -0400 http://www.medications.com/effect/view/21946?item=683 I was put on Toprol XL 50 mg for AV Nodel Reentrant Tachycardia last November. I went to the ER with this condition exactly 1 year ago and at 1st they started me on Cardizem CR and that DID NOT work at all...kept having palpitations, so my DR. switched me http://www.medications.com/effect/view/21946?item=683