Beta-blockers antagonize beta-1 and beta-2 receptors which are the usual targets ... Stabilizing membranes decreases the propagation of action potentials. This is also the mechanism that local ...

The pMDI was initially used for the administration of the non-selective beta-agonists ... action its use is now very limited. Over the last 10 years, the long-acting beta-agonists (LABAs) have ...

and also describes its beta-2 agonist action as “long-acting." Because it is not included in the CHRB's classification list of drugs, carmoterol becomes a Class 1/Penalty Class A by default.