Obesity Drug Market Hits $16B as Lilly, Novo Face New Rivals
Las Vegas – – September 15, 2026 -- The obesity therapeutics market across the seven major markets was valued at approximately USD 16 billion in 2025 and is projected to grow at a 27% CAGR through 2036, according to DelveInsight, as a wave of next-generation candidates threatens to disrupt the Eli Lilly-Novo Nordisk duopoly.
Oral GLP-1 Therapies Accelerate Patient Uptake
Novo Nordisk's oral WEGOVY surpassed 5 million cumulative U.S. prescriptions within 30 weeks of launch, while Eli Lilly's oral FOUNDAYO (orforglipron) gained significant traction among patients initiating obesity treatment by mid-2026. Aparna Thakur, Project Manager of Forecasting & Analytics at DelveInsight, said FOUNDAYO's once-daily oral formulation positions it for rapid uptake as a more convenient alternative to injectable therapies.