Key takeaways
Sotalol (Betapace) and atenolol (Tenormin) are both beta blockers, but they have different uses and mechanisms. 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 start it. Atenolol, on the other hand, is a cardioselective beta blocker used to treat high blood pressure, chest pain, and to lower the risk of death after a heart attack. It's typically taken once daily. Sotalol can cause serious arrhythmias and is not suitable for people with certain medical conditions like asthma, while atenolol has a lower risk of causing breathing problems but can hide symptoms of low blood sugar. Both medications are available in generic forms and should not be stopped suddenly without consulting your provider.
