York B, Reineke EL, Sagen JV, Nikolai BC, Zhou S, Louet JF, Chopra AR, Chen X, Reed G, Noebels J, Adesina AM, Yu H, Wong LJ, Tsimelzon A, Hilsenbeck S, Stevens RD, Wenner BR, Ilkayeva O, Xu J, Newgard CB, OMalley BW
University of Missouri-Kansas City School of Medicine, MO, USA
Key limitations to disclose Approved pharmaceutical products and independently sourced research material are not interchangeable
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Kathryn Horton, a board-certified internal medicine physician, stated it directly: "Tirzepatide is a synthetic peptide that is rapidly degraded by digestive enzymes within the gastrointestinal tract." The larger molecular size and chemical modifications that enable dual-receptor agonism "currently pose significant challenges for the development of an effective oral formulation." For sublingual delivery specifically, the absorption story is slightly different but still problematic
Hypoglycemia was less common with tirzepatide than with insulin degludec