McKesson is a healthcare services company. It operates through four business segments: U.S. Pharmaceutical, Prescription Technology Solutions (RxTS), Medical-Surgical Solutions, and International. The U.S. Pharmaceutical segment provides distribution and logistics services for branded, generic, specialty, biosimilar, and over-the-counter pharmaceuticals, as well as other healthcare-related products. The RxTS segment operates across the healthcare industry to connect patients, pharmacies, providers, pharmacy benefit managers, health plans, and biopharmaceutical companies. The Medical-Surgical Solutions segment delivers medical-surgical supply distribution, logistics, and other services to healthcare providers, including physician offices, surgery centers, nursing homes, hospital reference labs, and home healthcare agencies. The International segment offers wholesale, institutional, and retail customers distribution and services.