It is typically administered subcutaneously in the abdomen, thigh, or upper arm
Known commercially as Mounjaro and Zepbound, tirzepatide adds a second hormonal mechanism on top of the GLP-1 pathway, which translates to meaningfully stronger appetite suppression and greater average weight loss than semaglutide alone
Two people at 200 pounds, one with 20% body fat and another with 40% body fat, will have somewhat different pharmacokinetic profiles
For patients who prefer oral dosing over weekly injections, Rybelsus offers a clinically validated alternative, though the strict dosing requirements (empty stomach, 120 mL water only, 30-minute wait before food) affect real-world adherence
Moreover, the persistence of GLP-1RAs beneficial effects remains uncertain
& Powathil, G