Also available in 1 mL, 10 mg, 25 mg, 50 mg, 200 mg, 500 mg and bulk. Please contact Fisher for quotes. Carteolol hydrochloride (Abbott-43326) is a synthetic quinolinone derivative, antihypertensive Carteolol Hydrochloride is a nonselective beta-adrenoceptor blocking agent for beta-1 and beta-2 receptors with no membrane-stabilizing activity but moderate intrinsic sympathomimetic effects. It is used for the treatment of hypertension and certain arrhythmias and as an anti-angina and antiglaucoma agent. Purity 99.97%