[{"from": "human", "value": "Provide a description of this molecule. [C][N][C@@H1][C][C][C@H1][Ring1][Branch1][C][C][Branch1][Ring2][C][Ring1][#Branch1][O][C][=Branch1][C][=O][C@H1][Branch1][Ring1][C][O][C][=C][C][=C][C][=C][Ring1][=Branch1]"}, {"from": "gpt", "value": "The molecule is a tropane alkaloid and the levo-isomer of [atropine]. It is commonly extracted from plants in the Solanaceae or nightshade family. Research into the action of hyoscyamine in published literature dates back to 1826. Hyoscyamine is used for a wide variety of treatments and therapeutics due to its antimuscarinic properties.  Although hyoscyamine is marketed in the United States, it is not FDA approved."}]