retatrutide same as ozempic (“reta”) is an experimental weight-loss drug currently in Phase 3 clinical trials. It's a once-weekly injection similar to and Mounjaro—but more powerful. The reason comes down to how it works Retatrutide for Weight Loss: TRIUMPH-1
Description
This hormone regulates blood sugar and reduces appetite

For those who have heard these phrases before, phase one, phase two, phase three, and never knew what they meant, phase three is the really big, really expensive one

Reference: Disclaimer: This statement has not been evaluated by the Food and Drug Administration

J Physiol (Lond) 2013;591(23):59595975

Direct evidence for the effect of glucagon on lean mass is seen from clinical situations of glucagon excess, in the glucagonoma syndrome (89)
