AVNRT Versus AVRNRT Target Cardia?

The two classes that we sort of talked the most about were beta blockers and then also the non-dihydropereidine calcium channel blockers. Beta blockers have a little bit of reputation for being for maybe a not great side effect profile for some patients. So I think Dr. Cooper favors the calcium channel blocker. And he, and he mentioned the 20 minute, the time, the time onset of the medications around 20 minutes.