McKesson is engaged in healthcare services. Co. operates its business in four reportable segments: U.S. Pharmaceutical, which distributes branded, generic, specialty, biosimilar and over-the-counter pharmaceutical drugs, and other healthcare-related products; Prescription Technology Solutions, which provides prescription price transparency, benefit insight, dispensing support services, third-party logistics, and wholesale distribution support; Medical-Surgical Solutions, which provides medical-surgical supply distribution, logistics, and other services to healthcare providers; and International, which provides distribution and services to wholesale, institutional, and retail customers.