In this continuation of "Medicating the Failing Heart" we pick up the theme of systolic heart failure and how good beta blockers are or aren't compared to our newest agent for systolic heart failure - vericiguat. As we discuss, beta blockers hold their own quite well. But beware. Having a patient on a beta blocker is not the same thing as having them appropriately medically beta blocked. We'll discuss what that means and explain that while it's been said that the difference between a drug and a poison is dose, it is also true that dose determines when something is a drug at all.