Betaxolol is a β 1-selective (cardioselective) adrenergic receptor blocking agent that has weak membrane-stabilizing activity and no intrinsic sympathomimetic (partial agonist) activity. The preferential effect on β 1 receptors is not absolute, however, and some inhibitory effects on β 2 receptors (found chiefly in the bronchial and vascular musculature) can be expected at higher doses.
Betaxolol is indicated in the management of hypertension. It may be used alone or concomitantly with other antihypertensive agents, particularly thiazide-type diuretics.