Metoprolol
"I have been taking Metoprolol tartrate for 15 years and it has probably saved my life. I take 100mg twice a day with little or no side effects. I feel great while using this medicine. If I miss a dose, I get serious tachycardia and cannot do physical work. When using, I am a conditioned athlete, lift weights, sprints, etc. and feel healthy. No clicks, no PVC's."