Those who take tirzepatide, the drug sold as Zepbound and Mounjaro, could lose more weight than those who take semaglutide, known as Ozempic and Wegovy, according to new research.

People taking Eli Lilly's obesity drug, Zepbound, lost nearly 50% more weight than those using rival Novo Nordisk's Wegovy in the first head-to-head study of the blockbuster medications. Clinical trial participants who took tirzepatide,

A study of two blockbuster weight-loss drugs showed that users of Eli Lilly’s Zepbound lost just over 2 inches more off their waists compared with Novo Nordisk’s rival Wegovy. At 72 weeks, participants using Zepbound saw an average weight-loss reduction of 20.