Octreotide

**Semantic type:** Amino Acid, Peptide, or Protein|Pharmacologic Substance

**Definition:** A synthetic long-acting cyclic octapeptide with pharmacologic properties mimicking those of the natural hormone somatostatin. Octreotide is a more potent inhibitor of growth hormone, glucagon, and insulin than somatostatin. Similar to somatostatin, this agent also suppresses the luteinizing hormone response to gonadotropin-releasing hormone, decreases splanchnic blood flow, and inhibits the release of serotonin, gastrin, vasoactive intestinal peptide (VIP), secretin, motilin, pancreatic polypeptide, and thyroid stimulating hormone.

**Synonyms:** - D-Phenylalanyl-L-cysteinyl-L-phenyl-alanyl-D-tryptophyl-L-lysyl-L-threonyl-N-[2-hydroxy-1-(hydroxymethyl)propyl]-L-cysteinamide Cyclic (2->7)-Disulfide - D-Phenylalanyl-L-cysteinyl-L-phenylalanyl-D-tryptophyl-L-lysyl-L-threonyl-L-cysteinyl-L-threoninol Cyclic (2->7)-Disulfide - D-Phenylalanyl-L-cysteinyl-L-phenylalanyl-D-tryptophyl-L-lysyl-L-threonyl-N-[(1R,2R)-2-hydroxy-1-(hyroxymethyl)propyl]-L-cysteinamide, Cyclic (2->7)-disulfide - OCTREOTIDE - SMS 201 995 - SMS 201995 - SMS-201-995 - SMS201995 - octreotide