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奥曲肽（商品名为善得定）是人工合成的生长激素释放抑制素（体抑素），具有显著抑制肠肽释放及胃，肠，胰内、外分泌功能的作用。其结构环内4个氨基酸在排列上与天然体抑素相同，为环化的8肽结构，以保持生物活性，临床可供皮下、肌肉注射或静滴，静注后的血浆半减期达90分钟
Octreotide (trade name of good set) is a synthetic somatostatin (somatostatin), with significant inhibition of intestinal peptide release and stomach, intestine, pancreas, exocrine function. The structure of the ring 4 amino acids in the arrangement of the same with the natural somatostatin, a cyclized 8 peptide structure to maintain biological activity, the clinical available subcutaneous, intramuscular injection or intravenous infusion of plasma semi-reduced after up to 90 minutes