2,3,4,5-Tetrahydro-1H-3-benzazepin-7-amine-d4 is the isotope labelled analog of 2,3,4,5-Tetrahydro-1H-3-benzazepin-7-amine. 2,3,4,5-Tetrahydro-1H-3-benzazepin-7-amine is a metabolite of Lorcaserine (L469890), which is a novel selective 5-HT2C-receptor agonist for the treatment of obesity.