[{"from": "human", "value": "Please give me some details about this molecule. [C][O][C][=C][C][=C][C][=C][Ring1][=Branch1][O][C][C][N][C][C][Branch2][Ring1][=Branch1][C][O][C][=C][C][=C][C][=C][Ring1][=Branch1][C][=C][C][=C][C][=C][Ring1][=Branch1][N][Ring1][=Branch2][O]"}, {"from": "gpt", "value": "The molecule is a racemic mixture where the S(-) enantiomer is a beta adrenoceptor blocker and the R(+) enantiomer is both a beta and alpha-1 adrenoceptor blocker. It is currently used to treat heart failure, left ventricular dysfunction, and hypertension. The dual action of carvedilol is advantageous in combination therapies as moderate doses of 2 drugs have a decreased incidence of adverse effects compared to high dose monotherapy in the treatment of moderate hypertension.  Carvedilol was granted FDA approval on 14 September 1995."}]