<unk>  (also known as daturine or duboisine) is a naturally occurring tropane alkaloid and plant toxin. It is a secondary metabolite found in certain plants of the family Solanaceae, including henbane (Hyoscyamus niger), mandrake (Mandragora officinarum), angel's trumpets (Brugmansia spp.), jimsonweed (Datura stramonium), tomato (Solanum lycopersicum), the sorcerers' tree (Latua pubiflora), and deadly nightshade (Atropa belladonna). It is the levorotary isomer of atropine (third of the three major nightshade alkaloids) and thus sometimes known as levo-atropine. Brand names for<unk>  include Symax, HyoMax, Anaspaz, Egazil, Buwecon, Cystospaz, Levsin, Levbid, Levsinex, Donnamar, NuLev, Spacol T/S, and Neoquess.
Hyoscyamine
N-Acetylserotonin
Acetylcholine
Beta-Endorphin
Octopamine
Serotonin
Dopamine 
Dopamine