Merck's first-quarter 2023 sales were $12.7 billion, a 10% decrease compared to the first quarter of 2022. GAAP EPS was $1.11 and non-GAAP EPS was $1.40.
First-quarter Pharmaceutical sales declined 10% to $12.7 billion, primarily due to lower sales in virology, largely attributable to LAGEVRIO, and diabetes, partially offset by growth in oncology, vaccines and hospital acute care.
Growth in oncology was largely driven by higher sales of KEYTRUDA, which rose 20% to $5.8 billion in the quarter.
Growth in vaccines reflects higher combined sales of GARDASIL and GARDASIL 9, which grew 35% to $2.0 billion, reflecting strong demand outside of the U.S., particularly in China, which also benefited from the timing of shipments and increased supply.
Animal Health sales totaled $1.5 billion for the first quarter of 2023, a 1% increase compared with the first quarter of 2022.
Merck is raising and narrowing its full-year outlook ranges for sales and non-GAAP EPS. For GAAP EPS, Merck is lowering and narrowing its full-year outlook, attributable to a GAAP-only charge related to settlements with certain plaintiffs in the Zetia antitrust litigation.