As others have said, it’s the generic name, not brand name. I like it, because I generally focus on memorizing generic names over brand names personally. I know that anything ending in -tide is a peptide and highly likely these days to be a modifier of the GLP system.

Other drugs in the same family as retatrutide include tirzepatide (“Mounjaro”), and semaglutide (“Wegovy”). In that light, it’s a pretty good name!