Regeneron Pharmaceuticals, Inc. is a biopharmaceutical company that discovers, invents, develops, manufactures and commercializes medicines for the treatment of serious medical conditions. The Company's segment includes activities related to the discovery, development and commercialization of pharmaceutical products for the treatment of serious medical conditions. It commercializes medicines for eye diseases, high low-density lipoprotein (LDL) cholesterol and a rare inflammatory condition, and has product candidates in development in other areas of unmet medical need, including oncology, rheumatoid arthritis (RA), asthma, atopic dermatitis, pain and infectious diseases. Its marketed products include EYLEA (aflibercept) injection, Praluent (alirocumab) Injection and ARCALYST (rilonacept) injection for subcutaneous use. Its other products include Sarilumab (REGN88), Dupilumab (REGN668), REGN2222, Fasinumab (REGN475), REGN2810, REGN2176-3, Evinacumab (REGN1500) and REGN1908-1909.