Which drug does NOT belong to the beta 1 selective beta blockers list?

Propranolol is not a beta 1 selective beta blocker; rather, it is a non-selective beta blocker. This means it blocks both beta 1 and beta 2 adrenergic receptors. Beta 1 selective blockers primarily target the heart and are typically used to manage conditions like hypertension and heart failure with fewer side effects related to the respiratory system that might occur with non-selective blockers.

Acebutolol, Metoprolol, and Bisoprolol, on the other hand, are beta 1 selective. Acebutolol is partly selective and can be used in some cases, while Metoprolol and Bisoprolol are fully beta 1 selective and widely prescribed. Thus, when distinguishing between these medications, the classification of propranolol as non-selective affirms its position as the drug that does not belong in the beta 1 selective category.