what is the difference between tirzepatide and retatrutide Semaglutide vs vs Retatrutide: 2026 Chicago Guide Retatrutide vs Tirzepatide: What's the

Currently approved delivery methods include: Subcutaneous injection : The most common route, using pre-filled pens for once-weekly (semaglutide, dulaglutide) or once-daily (liraglutide) administration Oral tablets : Semaglutide (Rybelsus) is the only FDA-approved oral GLP-1 medication, utilizing absorption-enhancing technology No transdermal patch formulation has received FDA approval for GLP-1 delivery

So, only a very small amount is able to enter the bloodstream leading to poor bioavailability and poor absorption rates

, Merck, Sanofi, Eli Lilly, J&J GLP-1 GLP-1 Dual agonist

Data availability All data generated in this study are provided in the Supplementary Information and the Source Data files published alongside this article