Vapreotide is primarily used in the medical field for its antisecretory properties, particularly in managing conditions related to excessive hormone secretion. It is effective in treating symptoms of carcinoid syndrome, such as flushing and diarrhea, by inhibiting the release of hormones like serotonin and vasoactive intestinal peptide. Additionally, it is utilized in the management of acromegaly, a disorder caused by excess growth hormone, by reducing hormone levels and alleviating associated symptoms. Vapreotide is also being explored for its potential role in controlling bleeding in esophageal varices, a complication of liver cirrhosis, due to its ability to reduce portal hypertension. Its application extends to research settings, where it is studied for its effects on tumor growth and hormone-related disorders.