Eli Lilly developed Mounjaro and Zepbound, helping it become one of the world’s most valuable pharmaceutical companies by market capitalization.
Mounjaro is the brand name for tirzepatide used to improve blood-sugar control in adults with type 2 diabetes. Zepbound is the brand name for tirzepatide approved for chronic weight management in eligible adults. The same active ingredient targets both GIP and GLP-1 receptors.
Eli Lilly and Company was founded in 1876 by Colonel Eli Lilly in Indianapolis, Indiana. Over time, the company developed medicines across diabetes, oncology, immunology, neuroscience, and other fields. Its tirzepatide products created enormous investor interest because obesity and diabetes affect hundreds of millions of people globally.
Eli Lilly is sometimes confused with Novo Nordisk, another pharmaceutical leader whose semaglutide products include Ozempic and Wegovy. Those products are not made by Eli Lilly. Market rankings between the two companies can change with share prices, drug-demand expectations, and regulatory developments.