The oral route of drug delivery is challenging for peptides because the GI tract is specifically designed to break down proteins and peptides into their constituent amino acids for absorption
Eur Neuropsychopharmacol 68:110 Peter RS, Nieters A, Krausslich HG, Brockmann SO, Gopel S, Kindle G, Merle U, Steinacker JM, Rothenbacher D, Kern WV, Group EPS (2022) Post-acute sequelae of Covid-19 six to 12 months after infection: population based study
JAMA Internal Medicine (2016): In over 1.5 million patients, incretin-based drugs, including GLP-1s, had an adjusted hazard ratio of 1.04 (95% CI, 0.811.35) for acute pancreatitis
Ashford, T
When Eng tested exendin-4 in diabetic mice, the results were dramatic
Missed daily dose protocol For daily oral GLP-1 formulations, both tablets and sublingual drops, the rule is simple