Supraventricular Tachycardia
"I have had PSVT and occasional atrial fibrillation (plus the related anxiety from these conditions) since I was 21.  I am now 44.  I have been on metoprolol 25 mg, once a day in the morning, for the past 18 months and I love it. I was originally put on it twice a day, but I already had bradycardia and low blood pressure at night so within a couple of days the nighttime dose was making me wake up gasping for air with an extremely low heart rate and blood pressure so low it wouldn&#039;t register on my home monitor.  I called the doctor and he said to not take the bedtime dose. I haven&#039;t had any side effects that I recall. On the contrary, I can now play sports with my kids without flipping into an irregular rhythm."