Key takeaways
Sotalol (Betapace) and metoprolol tartrate (Lopressor) are both beta blockers, but they are used to treat different conditions. Sotalol is a non-selective beta blocker and potassium channel blocker, primarily used to treat and prevent certain heart rhythm problems like atrial fibrillation. It requires close monitoring in a hospital when you first start taking it. Metoprolol tartrate, on the other hand, is a selective beta blocker used to treat high blood pressure, chest pain, and to lower the risk of death after a heart attack. You typically take metoprolol tartrate with food, and it is less likely to cause breathing problems compared to sotalol. Both medications are available in generic forms, but sotalol also comes in an oral liquid form for those who have trouble swallowing tablets. While both can cause dizziness and tiredness, sotalol has a higher risk of causing serious heart rhythm issues and requires more frequent monitoring.
