[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][Branch1][C][C][N][C][C][Branch1][#C][C][O][C][=C][C][=C][C][=C][Ring1][=Branch1][O][C][C][=C][O].[Cl]"}, {"from": "gpt", "value": "The molecule is the hydrochloride salt form of oxprenolol, a lipophilic, nonselective beta-adrenergic receptor antagonist with anti-arrhythmic, anti-anginal and antihypertensive activities. Oxprenolol competitively binds to and blocks beta-1 adrenergic receptors in the heart, thereby decreasing cardiac contractility and rate. This leads to a reduction in cardiac output and lowers blood pressure. In addition, oxprenolol prevents the release of renin, a hormone secreted by the kidneys that causes constriction of blood vessels."}]