N Engl J Med (2021) 384:9891002
Why tirzepatide data matters separately Even though semaglutide and tirzepatide are both GLP-1 receptor agonists, they are different molecules
There are usually ways to address libido changes without discontinuing treatment, such as dose adjustments, nutritional changes, or adding hormone support
A study utilizing functional MRI found that administration of exenatide, a glucagon-like peptide-1 receptor agonist, decreased activation in areas such as the insula, amygdala, orbitofrontal cortex and putamen in response to food cues
Consequently, only a handful of novel PEs have progressed into commercial use over the last few decades, with sodium salcaprozate (SNAC) in the oral semaglutide tablet (Rybelsus) being one of the most clinically advanced examples ( Because of these constraints, formulation development in oral peptide delivery has largely proceeded through iterative optimization within a narrow set of established PEs, rather than broad exploration of new excipient classes (Maher and Brayden, 2021)
doi: 10.1016/j.celrep.2020.108572 52 RamsayR