Eli Lilly developed the diabetes and obesity medicines Mounjaro and Zepbound.
Eli Lilly and Company is an American pharmaceutical corporation founded in Indianapolis in 1876 by Colonel Eli Lilly, a chemist and former Union Army officer. The company became known for producing standardized medicines and later expanded into insulin, neuroscience treatments, cancer drugs, and therapies for metabolic disease.
Mounjaro is the brand name for tirzepatide when used to improve blood-sugar control in adults with type 2 diabetes. Zepbound is the brand name for tirzepatide approved for chronic weight management and certain related conditions. Tirzepatide acts on two hormone pathways, GIP and GLP-1.
Mounjaro and Zepbound contain the same active ingredient but have different approved indications and branding. They should not be confused with Novo Nordisk’s semaglutide products, including Ozempic and Wegovy. Drug approvals and labeling can vary by country, so brand use depends on the relevant regulator.