The hypothesis driving its design was straightforward but unverified at the time: that engaging GIP and GLP-1 receptors simultaneously, pathways which are normally co-secreted from the gut following a meal, would produce additive or synergistic effects on insulin secretion, gastric motility, and downstream metabolic markers beyond what either pathway could deliver alone
Retatrutide is a triple agonist targeting GLP-1, GIP, and glucagon receptors
The psychology of nighttime injection Timing your injection is not purely a physiological decision
Davies MJ, Bergenstal R, Bode B, Kushner RF, Lewin A, Skjth TV, et al
This is particularly relevant for oral contraceptives, which may have reduced effectiveness during tirzepatide initiation and after each dose increase