Octreotide acetate is a synthetic, long-acting somatostatin analog that effectively controls symptoms by inhibiting the secretion of growth hormone, glucagon, and insulin, reducing the levels of these hormones. In addition, the drug can inhibit the response of luteinizing hormone (LH) to gonadotropin-releasing hormone (GnRH), reduce visceral blood flow, and inhibit the secretion of serotonin (5-HT), gastrin, etc.