Researchers find tirzepatide more effective than semaglutide for weight loss in a 72-week trial, with significant reductions in body weight and waist circumference.

Drugmakers are offering the blockbuster medications at steep discounts to people willing to pay out of pocket.

Eli Lilly’s Zepbound proved more effective than Novo Nordisk’s Wegovy in a new head-to-head trial, though both medications ...