Participants who took tirzepatide — which is sold as Zepbound by Eli Lilly — lost an average of 50 pounds over 72 weeks. Those who took semaglutide — known as Novo Nordisk's Wegovy, lost about 33 pounds.

A new study has found that people taking Eli Lilly's obesity drug Zepbound lost almost 50% more weight than those using Novo Nordisk's Wegovy.

By the end of the trial, those who took Zepbound lost about 20% of their body weight on average, compared with a nearly 14% loss for those who took Wegovy. The tirzepatide group t