mirtazapine, (14b,S)-1,2,3,4,10,14b-hexahydro-2-methylpyrazino[2,1-a]pyrido[2,3-c][2]benzazepine, (S)-mirtazepine, (S)-(+)-MIRTAZAPINE, (S)-1,2,3,4,10,14b-hexahydro-2-methyl-pyrazino[2,1-a]pyrido[2,3-c][2]benzazepine, (S)-1,2,3,4,10,14b-hexahydro-2-methyl-pyrazino[2,1-a]pyrido[2,3c][2]benzazepine, (S)1,2,3,4,10,14b-hexahydro-2-methyl-pyrazino-[2,1-a] pyrido [2,3-c] [2] benzazepin