atrial fibrillation
"I have atrial fibrillation - beats to 180 very irregular beat, converted in 45 minutes in ER. Started me on Toprol 25 once a day. Heart rate now around 60-70, blood PSI 120/70 side effects so far include problems sleeping, restlessness also drowsy on and off. Only been taking this drug for a week now, perhaps the side effects will reduce in time."