BUSINESS

Keytruda Maintains Lead as Japan’s Top-Selling Drug for 32nd Month: Encise

June 5, 2026
MSD’s anti-PD-1 antibody Keytruda (pembrolizumab) remained Japan’s best-selling prescription drug in May, extending its run at the top to 32 consecutive months, according to preliminary snapshot data released by Encise on June 4. Keytruda hauled in sales of 16.8 billion…

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BUSINESS

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