[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][C][Branch1][C][C][N][C][C][Branch1][P][C][O][C][=C][C][=C][C][=C][C][=C][C][=C][Ring1][=Branch1][Ring1][#Branch2][O]"}, {"from": "gpt", "value": "The molecule is a nonselective beta-adrenergic receptor blocker (beta-blocker) that is widely used for the therapy of hypertension, cardiac arrhythmias, angina pectoris and hyperthyroidism. Propranolol has yet to be convincingly associated with clinically apparent liver injury and is often used in patients with liver disease and cirrhosis."}]