Lanreotide acetate is a polypeptide compound prepared by chemical synthesis. Its structure is similar to that of naturally occurring somatostatin and is an octapeptide analog. The compound can bind to voltage-dependent calcium channels and inhibit the secretion of growth hormone (GH) by inhibiting the secretion of growth hormone and reducing the level of insulin-like growth factor-1 (IGF-1). Compared with the inhibition of insulin secretion, lanreotide acetate shows more significant selectivity.