McKesson Corp. engages in the provision of supply chain management solutions, retail pharmacy, community oncology and specialty care, and healthcare information technology. It operates through the following segments: U.S. Pharmaceutical and Specialty Solutions; European Pharmaceutical Solutions; Medical-Surgical Solutions and Other. The U.S. Pharmaceutical and Specialty Solutions segment distributes pharmaceutical and other healthcare-related products and also provides pharmaceutical solutions to pharmaceutical manufacturers in the United States. The European Pharmaceutical Solutions segment provides distribution and services to wholesale, institutional and retail customers and serves patients and consumers in 13 European countries. The Medical-Surgical Solutions segment focuses on medical-surgical supplies and provides logistics and other services to healthcare providers in the United States. The Other segment comprises on McKesson Canada, McKesson Prescription Technology Solutions and in a joint venture. The company was founded by John McKesson and Charles Olcott in 1833 and is headquartered in Irving, TX.