Selective 5-HT2C agonist. Ki values are 56, 2350, 1575 and 815 nM for human recombinant 5-HT2C, 5-HT2A, 5-HT6 and 5-HT7 receptors respectively. Stimulates intracellular Ca2+ mobilization in CHO cells expressing human 5-HT2C receptors (EC50 = 72 nM). Reduces food intake in rats.