((3RS,11bRS)-3-Isobutyl-9,10-dimethoxy-1,3,4,6,7,11b-hexahydro-2H-pyrido[2,1-a]isoquinolin-2-one); (3RS,11bRS )-3-Isobutyl-9,10-dimethoxy-1,3,4,6,7,11b-hexahydro-2H -pyrido[2,1-a]isoquinolin-2-one; (+/-)-Tetrabenazine; Rubigen; (3R,11bR)-rel-1,3,4,6,7,11b-Hexahydro-9,10-dimethoxy-3-(2-methylpropyl)-2H-benzo[a]quinolizin-2-one; 9,10-dimethoxy-3-(2-methylpropyl)-1,3,4,6,7,11b-hexahydrobenzo[a]quinolizin-2-one; (SS,RR)-3-Isobutyl-9,10-dimethoxy-1,3,4,6,7,11b-hexahydro-pyrido[2,1-a]isoquinolin-2-one