Atrial Fibrillation
"I recently switched from metaprolol, 1/2 of 25 mg/ day to brand name Toprol xl &amp; have found the negative side effects- fatigue, too low blood pressure, dizziness, nausea- to be much less. I still feel a little of that about 12 hours after I take it- I figure that is a slight &quot; withdrawal&quot; effect, it lasts about 30-45 min. &amp; I don&#039;t have it every day. When I took the generic ( manufacturer, PAR) I felt on a roller coaster, up &amp; down all day. The time release delivery feels to be much smoother with the brand name, toprol- I recommend it. All in all, it works well, keeps my heart in sinus rhythm, but it&#039;s a tough drug to have to take."