Merck & Co., Inc. operates as a healthcare company worldwide. It operates through two segments, Pharmaceutical and Animal Health. The Pharmaceutical segment offers human health pharmaceutical products in the areas of oncology, hospital acute care, immunology, neuroscience, virology, cardiovascular, and diabetes, as well as vaccine products, such as preventive pediatric, adolescent, and adult vaccines.

Pfizer Inc. discovers, develops, manufactures, markets, distributes, and sells biopharmaceutical products worldwide. It offers medicines and vaccines in various therapeutic areas, including cardiovascular metabolic and women's health under the Premarin family and Eliquis brands; biologics, small molecules, immunotherapies, and biosimilars under the Ibrance, Xtandi, Sutent, Inlyta, Retacrit, Lorbrena, and Braftovi brands; and sterile injectable and anti-infective medicines, and oral COVID-19 treatment under the Sulperazon, Medrol, Zavicefta, Zithromax, Vfend, Panzyga, and Paxlovid brands.

Eli Lilly and Company discovers, develops, and markets human pharmaceuticals worldwide. It offers Basaglar, Humalog, Humalog Mix 75/25, Humalog U-100, Humalog U-200, Humalog Mix 50/50, insulin lispro, insulin lispro protamine, insulin lispro mix 75/25, Humulin, Humulin 70/30, Humulin N, Humulin R, and Humulin U-500 for diabetes; and Jardiance, Trajenta, and Trulicity for type 2 diabetes.

Bristol-Myers Squibb Company discovers, develops, licenses, manufactures, and markets biopharmaceutical products worldwide. It offers products for hematology, oncology, cardiovascular, immunology, fibrotic, neuroscience, and covid-19 diseases.

Johnson & Johnson, together with its subsidiaries, researches and develops, manufactures, and sells various products in the healthcare field worldwide. The company's Consumer Health segment offers baby care products under the JOHNSON'S and AVEENO Baby brands; oral care products under the LISTERINE brand; skin health/beauty products under the AVEENO, CLEAN & CLEAR, DR.

Amgen Inc. discovers, develops, manufactures, and delivers human therapeutics worldwide. It focuses on inflammation, oncology/hematology, bone health, cardiovascular disease, nephrology, and neuroscience areas.

Gilead Sciences, Inc., a biopharmaceutical company, discovers, develops, and commercializes medicines in the areas of unmet medical need in the United States, Europe, and internationally.