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, the drug sold as Zepbound, lost an average of 50 pounds (22.8 kilograms) over 72 weeks, while those who took semaglutide, or Wegovy, lost about 33 pounds (15 kilograms). That’s according to the study funded by Lilly, which was published Sunday in the New England Journal of Medicine.
Both drugs are part of a new class of medications that work by mimicking hormones in the gut and brain that regulate appetite and feelings of fullness. But
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