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Exenatide is an injectable antihyperglycemic drug used to manage high blood glucose levels in individuals with diabetes mellitus. It functions similarly to incretins, which are gastrointestinal hormones that stimulate the pancreas to release insulin. Exenatide has a longer duration of action compared to naturally occurring incretins because it is more resistant to degradation by the enzyme dipeptidyl peptidase-4 (DPP-4). This mechanism helps regulate glucose homeostasis.12

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