Zepbound Topples Sales King Keytruda as Lilly Reports 54% YoY Revenue Rise for Q3

Eli Lilly's Biotechnology Center in California

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Mounjaro and Zepbound contributed more than $10 billion to the $11.98 billion in sales Lilly recorded for key products in the third quarter, despite price decreases for the GLP-1 medicines.

There seems to be no limit to the profit that Eli Lilly can capture with its mega-blockbuster GLP-1 portfolio, as the tirzepatide franchise overtakes Merck’s Keytruda for the first time. Lilly’s third quarter revenue grew by 54% over Q3 2024 to $17.6 billion—even with a slight hit from lower prices of Zepbound and Mounjaro.

The company brought in $11.4 billion in the same period last year. Unsurprisingly, the steep rise in revenue was driven by the two GLP-1 brands, which experienced 62% volume growth, Lilly said in a third-quarter earnings report on Thursday morning. The revenue hike would have been even greater, the company said, if not for a decline in prices for the medicines.

Together, Mounjaro and Zepbound, which feature the active ingredient tirzepatide, brought in $10.1 billion in the third quarter. For the first time, the tirzepatide franchise has beaten the reigning sales champion Keytruda, Merck’s immuno-oncology blockbuster. Merck also reported earnings on Thursday, with Keytruda contributing $8.1 billion of $17.3 billion in total revenue.

From revenue to R&D investment, Novo and Lilly and their mega-blockbuster weight loss drugs Zepbound and Wegovy have moved into a new pharma stratosphere, far eclipsing their rivals.

Lilly’s key products—Ebglyss, Jaypirca, Kisunla, Mounjaro, Omvoh, Verzenio and Zepbound—brought in $11.98 billion total.

Lilly has been bolstering its direct-to-consumer offerings for Zepbound amid increasing pressure on the pharma industry to lower drug prices from President Donald Trump. Through its DTC platform LillyDirect, insured patients can access a pre-filled single dose vial of the weight loss medication for $25 with a savings card. A single-dose vial is available for $349 for uninsured patients. GoodRx lists an average retail price for a monthly supply at $1,272.

Lilly’s revenue has been climbing expeditiously quarter-over-quarter. Revenue increased to $15.6 billion in the second quarter of this year—a 38% jump over Q2 2024—after climbing to $12.73 billion in the first quarter.

The company will host an earnings call at 10 a.m. ET on Thursday.

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