why do you have to discard semaglutide after 28 days Compounded Days: Storage & Safety – PlexusDx Compounded Semaglutide Expiration: 28-Day Rule

This term reflects the recognition of a systemic condition that extends beyond the skin and musculoskeletal system, encompassing shared pathogenetic mechanisms, diverse clinical manifestations, and associated comorbidities [2]

It belongs to a novel class of drugs known as triple agonists , meaning it simultaneously activates three hormone receptors: GLP-1 (glucagon-like peptide-1) which reduces appetite and slows gastric emptying [9] [10] GIP (glucose-dependent insulinotropic polypeptide) which may enhance insulin secretion and has been suggested in early studies to support fat metabolism Glucagon receptor which may increase energy expenditure and has been proposed to support fat breakdown in the liver, based on early pharmacological data [11] [12] This triple mechanism distinguishes retatrutide from existing approved medicines such as semaglutide (a GLP-1 agonist) or tirzepatide (a dual GLP-1/GIP agonist)

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The HbA1c has a significant increase compared to cagrilintide alone, but is no better than semaglutide alone