Regeneron Pharmaceuticals top product net sales 2020-2023
Net sales of Libtayo, which is a top selling product of Regeneron Pharmaceuticals, amounted to 863 million dollars in 2023. In 2021, the top selling drug for Regeneron was the COVID-19 treatment Regen-COV, generating sales of some 5.8 billion U.S. dollars. Most of Regeneron's products are marketed only in the United States.