compare semaglutide and tirzepatide vs. Semaglutide: What's the Difference? Tirzepatide versus Semaglutide Once Weekly
Description
Most GLP-1 RAs are injected, although an oral formulation of semaglutide is now available (11)

Other weight loss medications, such as phentermine and topiramate, do list arthralgias (joint pain) as known side effects (4)

[msg me for peer reviewed empirical citations] The mechanism here is not behavioral
Some scientists are interested in whether better blood sugar control could lead to better vaccine responses
So to answer your question, the first two parts of Stunkards statement that people wont stay in treatment and people wont lose weight were probably no longer true by the early to mid-1980s

We also observed that semaglutide resulted in a larger improvement in patient-reported treatment satisfaction 19 compared with dapagliflozin, particularly in the SIDD group