are glp 1 and tirzepatide the same Major physiological roles of GLP-1 GIP. is acting as an Understanding GLP-1 vs. GIP Medications:

GLP-1 signaling affects appetite and glucose regulation

Wang J, Zhang CJ, Chia WN, Loh CC, Li Z, Lee YM, He Y, Yuan LX, Lim TK, Liu M, Liew CX, Lee YQ, Zhang J, Lu N, Lim CT, Hua ZC, Liu B, Shen HM, Tan KS, Lin Q

By interacting with these receptors, GLP-1 medications may influence satiety signaling in the brain and affect the rate at which the stomach empties, which may contribute to changes in hunger or fullness in some individuals

Of course, continuous subcutaneous infusion was not an attractive approach for practical clinical application, so something had to be done

It didn't hurt at all which was surprising since it was a shot