Mounjaro Overtakes Blockbuster Cancer Therapy Keytruda to Become World's Best-Selling Drug

Business Insider (Spain)

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The successful drug for diabetes Mounjaro, by Eli Lilly & Co., has surpassed Keytruda, Merck & Co.'s cancer therapy, as the world's best-selling drug.Mounjaro generated $8.7 billion for Lilly in the first quarter of 2026, surpassing Merck's Keytruda, which recorded sales of $7.9 billion. Keytruda has been the world's best-selling drug since the first quarter of 2023, when it unbound Humira, the drug from AbbVie Inc. for autoimmune disorders.Lill…