Isoprenaline is a catecholamine non-selective beta-adrenergic agonist typically used to treat bradycardia and heart block. Is Methoxamine a beta receptor agonist? Methoxamine is an agonist at alpha adrenergic receptors with selectivity for the alpha-1 adrenergic receptor subtype similar to phenylephrine. It has no agonist action at beta adrenergic receptors butRead More →