[{"from": "human", "value": "Provide a brief overview of this molecule. [C][=C][C][=Branch2][Ring1][#Branch1][=C][Branch2][Ring1][C][C][=C][Ring1][=Branch1][C@H1][Branch1][#Branch2][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][N][O][O][O]"}, {"from": "gpt", "value": "The molecule is an orally available prodrug of norepinephrine that is used in the treatment of symptomatic orthostatic hypotension due to neurogenic causes of autonomic failure. Droxidopa has had limited clinical use, but has not been linked to serum enzyme elevations nor to instances of clinically apparent acute liver injury."}]